“Days of Peace and Remembrance” Sunrise Bell Ringing [Oak Ridge, TN]

Manhattan Project National Historical Park in Oak Ridge Tennessee is asking all those who are interested to help ring the International Friendship Bell at Bissell Park 81 times at dawn (6:48 am ET) Wednesday August 6th to commemorate the number of years since the atomic......More

Manhattan Project National Historical Park in Oak Ridge Tennessee is asking all those who are interested to help ring the International Friendship Bell at Bissell Park 81 times at dawn (6:48 am ET) Wednesday August 6th to commemorate the number of years since the atomic bombing of Hiroshima. In addition an hour before dawn park rangers will light luminarias that have been decorated with messages of peace by community members. The luminarias will remain lit throughout the commemoration event. An Oak Ridge Civic Music Association quartet will be on site throughout the event to provide accompanying music.Members of the public are invited to take turns ringing the bell. Each person can ring the bell for whatever reason that speaks to them. They can ring the bell for lives lost they can ring the bell for social justice they can ring the bell for service and sacrifice they can ring the bell for peace. After each bell-ringer has rung the bell they are invited to record the reason why they rang the bell. Small pieces of paper and pens will be provided. Bell-ringers will then place the paper in a receptable and park staff will later catalog the papers for historical purposes.The Park understands that not everyone who wants to ring the bell will be able to come to the August 6 event. Therefore a virtual bell ringing option will be available on the park’s webpage  from 6:00 am EDT on August 6 through midnight PDT on August 9. The International Friendship Bell is a symbol of unity and will carry the message of peace and international friendship into the future. At nearly seven feet tall and five feet wide this 8 300-pound bronze bell hangs at A. K. Bissell Park in Oak Ridge Tennessee where the uranium for the world’s first atomic weapons was manufactured. Designed in Oak Ridge and cast in Kyoto Japan the relief panels on the bell show peaceful imagery inspired by Tennessee Japan and the tragedies of war between the two nations.  

International Friendship Bell in A K Bissell Park

The Women of K-25 [Oak Ridge, TN]

Join a ranger at the William J. Wilcox, Jr. Interpretive Center at the K-25 site for a half-hour presentation on the women workers of K-25. Learn about their day-to-day lives, their hardships and treatment, how they faced being female during the Manhattan Project, and h......More

Join a ranger at the William J. Wilcox, Jr. Interpretive Center at the K-25 site for a half-hour presentation on the women workers of K-25. Learn about their day-to-day lives, their hardships and treatment, how they faced being female during the Manhattan Project, and how they overcame obstacles. This program is free and accessible to all.

The program meets outside the William J. Wilcox, Jr. Interpretive Center at the K-25 site. The address is 652 Enrichment St. Oak Ridge, TN 37830.

Atomic Explorations: Was it Safe? [Tri-Cities, WA]

Was it Safe? Radiation Safety and the Manhattan Project The discovery of radiation and radioactivity quickly brought new tools to the medical world, novel ideas and products (not all beneficial) to the public, and injuries to some early researchers and practitioners. Th......More

Was it Safe? Radiation Safety and the Manhattan Project The discovery of radiation and radioactivity quickly brought new tools to the medical world, novel ideas and products (not all beneficial) to the public, and injuries to some early researchers and practitioners. The Manhattan Project required large groups of workers to interact with radiation, but how successful was the use of the innovative technologies and practices developed to protect them? Learn more about these techniques as we discuss whether they actually provided safety for thousands of workers. Did “safe” in the 1945 Manhattan Project mean the same as “safe” now?

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

Building America's Secret City: Guided Ranger Walk in Jackson Square [Oak Ridge, TN]

Manhattan Project National Historical Park will present a free program in Jackson Square. Jackson Square, or Town Center No. 1, formed the social and economic center of the wartime community of Oak Ridge. Stroll through the townsite to learn how Oak Ridgers created comm......More

Manhattan Project National Historical Park will present a free program in Jackson Square. Jackson Square, or Town Center No. 1, formed the social and economic center of the wartime community of Oak Ridge. Stroll through the townsite to learn how Oak Ridgers created community in the atomic city. During the walk, rangers and visitors will discuss what it took to shape Oak Ridge during World War II through routines and traditions brought from near and far. Program ends at the Jackson Square Tennis Courts right on time for the Tennis Court Dance. 

Jackson Square, Oak Ridge, TN243 Jackson Square, Oak Ridge, TN 37830The program will begin at the fountain in the main parking lot.

Lights for Peace [Los Alamos, NM]

On August 6 at 7:00 pm MDT, the park will host a Lights for Peace event at Ashley Pond in Los Alamos, NM. The program features display luminarias with messages of peace from the public along a path that participants are encouraged to walk for a quiet, contemplative expe......More

On August 6 at 7:00 pm MDT, the park will host a Lights for Peace event at Ashley Pond in Los Alamos, NM. The program features display luminarias with messages of peace from the public along a path that participants are encouraged to walk for a quiet, contemplative experience.For those who are unable to attend the August event in person, a virtual bell ringing is available from 6:00 am EDT on August 6 through 11:59 pm PDT on August 9. A virtual Lights for Peace is available year-round.

Ashley Pond directly behind the Visitor Center in Los Alamos.

Tennis Court Dance [Oak Ridge, TN]

Put on your dancing shoes, another summer of Tennis Court Dances are kicking off on the Jackson Square Tennis Courts. Held monthly on the third Thursday, Manhattan Project National Historical Park recreates the open air tennis court dances held during the Manhattan Proj......More

Put on your dancing shoes, another summer of Tennis Court Dances are kicking off on the Jackson Square Tennis Courts. Held monthly on the third Thursday, Manhattan Project National Historical Park recreates the open air tennis court dances held during the Manhattan Project to entertain the 75,000 war workers and their families contained within America’s Secret City.The dances are an all-ages event, and all are encouraged to participate. Featuring swing music from the 1940s, you might get bit by the jitterbug out on the court. Water, bug repellent and safe footwear is encouraged.The 2026 Summer Season of Tennis Court Dances will be held on May 21, June 18, July 16, August 20, September 17, and October 15, 2026. 

Jackson Square Tennis Courts96 W Tennessee Ave, Oak Ridge, TN 37830

Ashley Pond History Walk [Los Alamos, NM]

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels a......More

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels and weather conditions. Please check at the Manhattan Project Visitor Center in Los Alamos to see if this program is offered on the day of your visit. 

Manhattan Project National Historical Park Visitor Center

Atomic Explorations: Virtual B Reactor Tour [Tri-Cities, WA]

Virtual B Reactor Tour B Reactor Tours are on hiatus for now but that doesn't mean you can't experience and learn about the reactor and its role in ushering in the nuclear age. You will be expertly guided through the B Reactor using visuals from the park’s virtual tour ......More

Virtual B Reactor Tour B Reactor Tours are on hiatus for now but that doesn't mean you can't experience and learn about the reactor and its role in ushering in the nuclear age. You will be expertly guided through the B Reactor using visuals from the park’s virtual tour and demonstration items that will help bring the history, science, and legacies of the world’s first full scale nuclear production reactor to life.

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

A Secret City Planned from Miles Away: Housing and Home Life in Oak Ridge During the Manhattan Project [Oak Ridge, TN]

Join a ranger at the Children's Museum of Oak Ridge for a 30 minute walk and talk on the museum grounds as we discuss the importance of Victory Gardens during World War II and the various types of homes that were assembled for the Manhattan Project. This program is free......More

Join a ranger at the Children's Museum of Oak Ridge for a 30 minute walk and talk on the museum grounds as we discuss the importance of Victory Gardens during World War II and the various types of homes that were assembled for the Manhattan Project. This program is free and accessible to all.

This program begins outside the main entrance of the Children's Museum of Oak Ridge. The address is 461 W. Outer Dr. Oak Ridge, TN 37830.

Messages of Peace at the REACH Museum [Tri-Cities, WA]

Messages of Peace: Honoring History, Inspiring HopeJoin us at the REACH Museum on Saturday, August 8, from 10:00 AM – 1:30 PM for a day of reflection, remembrance, and peace.In partnership with the REACH Museum, we invite the community to take part in the Messages of Pe......More

Messages of Peace: Honoring History, Inspiring HopeJoin us at the REACH Museum on Saturday, August 8, from 10:00 AM – 1:30 PM for a day of reflection, remembrance, and peace.In partnership with the REACH Museum, we invite the community to take part in the Messages of Peace program, part of park’s annual Days of Peace and Remembrance commemorating the atomic bombings of Japan in 1945.What to Expect: Write a message of peace on a luminaria bag to be displayed during the Lights for Peace program on August 9. Fold origami cranes, a symbol of peace and healing inspired by the story of Sadako Sasaki, a young survivor of Hiroshima.Attend Ranger-led programs:10:30 AM: 20-minute family-friendly program that shares the history of the Manhattan Project and Sadako Sasaki’s legacy.11:30 AM: 45-minute program: From Creation to Detonation: The Story of Plutonium and the Manhattan Project.This is a family-friendly event included with museum admission and free for REACH Members. All supplies provided. 

1943 Columbia Park Trail Richland, WA 99353

Ashley Pond History Walk [Los Alamos, NM]

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels a......More

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels and weather conditions. Please check at the Manhattan Project Visitor Center in Los Alamos to see if this program is offered on the day of your visit. 

Manhattan Project National Historical Park Visitor Center

Female Soldiers of the Manhattan Project: Ranger Talk in Jackson Square [Oak Ridge, TN]

The Women's Army Corps (WAC) played an essential role in the success of the Manhattan Project by providing critical administrative, technical, and security support. WAC members served in a variety of positions, including handling classified materials, maintaining record......More

The Women's Army Corps (WAC) played an essential role in the success of the Manhattan Project by providing critical administrative, technical, and security support. WAC members served in a variety of positions, including handling classified materials, maintaining records, supporting communications, and assisting scientific and military operations. Their dedication and service helped ensure the project's efficiency and security during World War II. This program explores their contributions and honors the lasting impact they made on history.

Jackson Square, Oak Ridge, TN 243 Jackson Square, Oak Ridge, TN 37830 The program will begin at the fountain in the main parking lot.

Atomic Explorations: From Creation to Detonation [Tri-Cities, WA]

From Creation to Detonation: The story of Plutonium and the Manhattan Project The rush to build the world’s first atomic weapons during WWII required a massive effort that touched multiple continents, produced profound scientific achievements, and deployed the most powe......More

From Creation to Detonation: The story of Plutonium and the Manhattan Project The rush to build the world’s first atomic weapons during WWII required a massive effort that touched multiple continents, produced profound scientific achievements, and deployed the most powerful weapons known to humankind. Learn about the global effort required to produce the plutonium used in one of the atomic bombs dropped on Japan during the waning days of WWII.

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

Ashley Pond History Walk [Los Alamos, NM]

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels a......More

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels and weather conditions. Please check at the Manhattan Project Visitor Center in Los Alamos to see if this program is offered on the day of your visit. 

Manhattan Project National Historical Park Visitor Center

Lights for Peace [Tri-Cities, WA]

On August 9 at 8:00 pm PDT, the park will host Lights for Peace at the Fingernail Stage in Howard Amon Park in Richland, Washington. The program will feature music from the Mid-Columbia Mastersingers, a guest speaker, and an opportunity to ring a peace bell. Visitors wi......More

On August 9 at 8:00 pm PDT, the park will host Lights for Peace at the Fingernail Stage in Howard Amon Park in Richland, Washington. The program will feature music from the Mid-Columbia Mastersingers, a guest speaker, and an opportunity to ring a peace bell. Visitors will also have an opportunity to walk a path lit with luminarias for a quiet, contemplative experience based on their own personal reasons for participating. We are offering this Lights for Peace experience to mark the atomic bombings of Japan in the final days of World War II and to recognize the historical trauma of these events. Lights for Peace aims to provide an opportunity to remember and reflect on these world-changing events of 81 years ago. Howard Amon Park does not offer seating. It is recommended to bring chairs or blankets for seating.

Fingernail Stage in Howard Amon Park (80 Lee Blvd, Richland, WA 99352)

Ashley Pond History Walk [Los Alamos, NM]

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels a......More

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels and weather conditions. Please check at the Manhattan Project Visitor Center in Los Alamos to see if this program is offered on the day of your visit. 

Manhattan Project National Historical Park Visitor Center

Atomic Explorations: Virtual B Reactor Tour [Tri-Cities, WA]

Virtual B Reactor Tour B Reactor Tours are on hiatus for now but that doesn't mean you can't experience and learn about the reactor and its role in ushering in the nuclear age. You will be expertly guided through the B Reactor using visuals from the park’s virtual tour ......More

Virtual B Reactor Tour B Reactor Tours are on hiatus for now but that doesn't mean you can't experience and learn about the reactor and its role in ushering in the nuclear age. You will be expertly guided through the B Reactor using visuals from the park’s virtual tour and demonstration items that will help bring the history, science, and legacies of the world’s first full scale nuclear production reactor to life.

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

Atomic Explorations: From Creation to Detonation [Tri-Cities, WA]

From Creation to Detonation: The story of Plutonium and the Manhattan Project The rush to build the world’s first atomic weapons during WWII required a massive effort that touched multiple continents, produced profound scientific achievements, and deployed the most powe......More

From Creation to Detonation: The story of Plutonium and the Manhattan Project The rush to build the world’s first atomic weapons during WWII required a massive effort that touched multiple continents, produced profound scientific achievements, and deployed the most powerful weapons known to humankind. Learn about the global effort required to produce the plutonium used in one of the atomic bombs dropped on Japan during the waning days of WWII.

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

Atomic Explorations: Hanford Site Development - Achieving the Impossible [Tri-Cities, WA]

Hanford Site Development - Achieving the ImpossibleTwo years after the discovery of plutonium, the United States entered World War II and embarked on a seemingly impossible mission: make plutonium on an industrial scale for an atomic bomb. Why was the Hanford Site selec......More

Hanford Site Development - Achieving the ImpossibleTwo years after the discovery of plutonium, the United States entered World War II and embarked on a seemingly impossible mission: make plutonium on an industrial scale for an atomic bomb. Why was the Hanford Site selected for this mission? What made the construction and engineering of the Hanford Site so remarkable? Explore the development of Hanford’s plutonium factory in the early 1940s.

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

The Women of K-25 [Oak Ridge, TN]

Join a ranger at the William J. Wilcox, Jr. Interpretive Center at the K-25 site for a half-hour presentation on the women workers of K-25. Learn about their day-to-day lives, their hardships and treatment, how they faced being female during the Manhattan Project, and h......More

Join a ranger at the William J. Wilcox, Jr. Interpretive Center at the K-25 site for a half-hour presentation on the women workers of K-25. Learn about their day-to-day lives, their hardships and treatment, how they faced being female during the Manhattan Project, and how they overcame obstacles. This program is free and accessible to all.

The program meets outside the William J. Wilcox, Jr. Interpretive Center at the K-25 site. The address is 652 Enrichment St. Oak Ridge, TN 37830.

Atomic Explorations: Virtual B Reactor Tour [Tri-Cities, WA]

Virtual B Reactor Tour B Reactor Tours are on hiatus for now but that doesn't mean you can't experience and learn about the reactor and its role in ushering in the nuclear age. You will be expertly guided through the B Reactor using visuals from the park’s virtual tour ......More

Virtual B Reactor Tour B Reactor Tours are on hiatus for now but that doesn't mean you can't experience and learn about the reactor and its role in ushering in the nuclear age. You will be expertly guided through the B Reactor using visuals from the park’s virtual tour and demonstration items that will help bring the history, science, and legacies of the world’s first full scale nuclear production reactor to life.

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

Building America's Secret City: Guided Ranger Walk in Jackson Square [Oak Ridge, TN]

Manhattan Project National Historical Park will present a free program in Jackson Square. Jackson Square, or Town Center No. 1, formed the social and economic center of the wartime community of Oak Ridge. Stroll through the townsite to learn how Oak Ridgers created comm......More

Manhattan Project National Historical Park will present a free program in Jackson Square. Jackson Square, or Town Center No. 1, formed the social and economic center of the wartime community of Oak Ridge. Stroll through the townsite to learn how Oak Ridgers created community in the atomic city. During the walk, rangers and visitors will discuss what it took to shape Oak Ridge during World War II through routines and traditions brought from near and far. Program ends at the Jackson Square Tennis Courts right on time for the Tennis Court Dance. 

Jackson Square, Oak Ridge, TN243 Jackson Square, Oak Ridge, TN 37830The program will begin at the fountain in the main parking lot.

Tennis Court Dance [Oak Ridge, TN]

Put on your dancing shoes, another summer of Tennis Court Dances are kicking off on the Jackson Square Tennis Courts. Held monthly on the third Thursday, Manhattan Project National Historical Park recreates the open air tennis court dances held during the Manhattan Proj......More

Put on your dancing shoes, another summer of Tennis Court Dances are kicking off on the Jackson Square Tennis Courts. Held monthly on the third Thursday, Manhattan Project National Historical Park recreates the open air tennis court dances held during the Manhattan Project to entertain the 75,000 war workers and their families contained within America’s Secret City.The dances are an all-ages event, and all are encouraged to participate. Featuring swing music from the 1940s, you might get bit by the jitterbug out on the court. Water, bug repellent and safe footwear is encouraged.The 2026 Summer Season of Tennis Court Dances will be held on May 21, June 18, July 16, August 20, September 17, and October 15, 2026. 

Jackson Square Tennis Courts96 W Tennessee Ave, Oak Ridge, TN 37830

Ashley Pond History Walk [Los Alamos, NM]

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels a......More

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels and weather conditions. Please check at the Manhattan Project Visitor Center in Los Alamos to see if this program is offered on the day of your visit. 

Manhattan Project National Historical Park Visitor Center

Atomic Explorations: Alphabet People [Tri-Cities, WA]

Alphabet PeopleImagine living in a planned community where you can rent but not own a home. There is no unemployment, little to no crime, and Uncle Sam is your boss and your landlord. Welcome to WWII Richland, Washington—a secret city built to house Manhattan Project wo......More

Alphabet PeopleImagine living in a planned community where you can rent but not own a home. There is no unemployment, little to no crime, and Uncle Sam is your boss and your landlord. Welcome to WWII Richland, Washington—a secret city built to house Manhattan Project workers. Learn the ABC’s of those who lived in assigned housing in a secret city where "silence is security" and "blabatours are sabatours.”  

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

A Secret City Planned from Miles Away: Housing and Home Life in Oak Ridge During the Manhattan Project [Oak Ridge, TN]

Join a ranger at the Children's Museum of Oak Ridge for a 30 minute walk and talk on the museum grounds as we discuss the importance of Victory Gardens during World War II and the various types of homes that were assembled for the Manhattan Project. This program is free......More

Join a ranger at the Children's Museum of Oak Ridge for a 30 minute walk and talk on the museum grounds as we discuss the importance of Victory Gardens during World War II and the various types of homes that were assembled for the Manhattan Project. This program is free and accessible to all.

This program begins outside the main entrance of the Children's Museum of Oak Ridge. The address is 461 W. Outer Dr. Oak Ridge, TN 37830.

East Tennessee History Fair

Join Manhattan Project National Historical Park at the East Tennessee History Fair. This FREE curated celebration will take place in and around the East Tennessee History Center in downtown Knoxville and will include:regional historic/cultural organizationsliving histor......More

Join Manhattan Project National Historical Park at the East Tennessee History Fair. This FREE curated celebration will take place in and around the East Tennessee History Center in downtown Knoxville and will include:regional historic/cultural organizationsliving historylive musicsquare dancingcraftsfilm screeningschildren’s activitiesand more!The theme will center around our nation’s Semiquincentennial (250th) with a focus on these four pillars: Celebrate, Commemorate, Contemplate, and Commit. These pillars will be woven throughout the event with engagement areas and educational programming materials to spark conversation, encourage reflection, and help broaden our understanding of our diverse region.

East Tennessee History Center601 S Gay StKnoxville, TN 37902

Ashley Pond History Walk [Los Alamos, NM]

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels a......More

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels and weather conditions. Please check at the Manhattan Project Visitor Center in Los Alamos to see if this program is offered on the day of your visit. 

Manhattan Project National Historical Park Visitor Center

Female Soldiers of the Manhattan Project: Ranger Talk in Jackson Square [Oak Ridge, TN]

The Women's Army Corps (WAC) played an essential role in the success of the Manhattan Project by providing critical administrative, technical, and security support. WAC members served in a variety of positions, including handling classified materials, maintaining record......More

The Women's Army Corps (WAC) played an essential role in the success of the Manhattan Project by providing critical administrative, technical, and security support. WAC members served in a variety of positions, including handling classified materials, maintaining records, supporting communications, and assisting scientific and military operations. Their dedication and service helped ensure the project's efficiency and security during World War II. This program explores their contributions and honors the lasting impact they made on history.

Jackson Square, Oak Ridge, TN 243 Jackson Square, Oak Ridge, TN 37830 The program will begin at the fountain in the main parking lot.

Atomic Explorations: Atomic Photographic Journey [Tri-Cities, WA]

Atomic Photographic JourneyTake a photographic journey starting in the mid-Columbia a century before the arrival of the Manhattan Project and ending over Nagasaki, Japan on August 9, 1945.

Join us in the Visitor Center located at 2000 Logston Blvd. Richland, WA

Ashley Pond History Walk [Los Alamos, NM]

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels a......More

Join a ranger for a guided walk around Ashley Pond to hear stories about the Manhattan Project including how Los Alamos was selected, the desgn of the first atomic bombs, and what life was like in wartime Los Alamos.Program availability is dependent on staffing levels and weather conditions. Please check at the Manhattan Project Visitor Center in Los Alamos to see if this program is offered on the day of your visit. 

Manhattan Project National Historical Park Visitor Center