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USS Triton Sail Park

USS Triton (SSRN 586) made history in 1960 as the first submarine to circle the earth underwater, following the path of explorer Ferdinand Magellan.

Port of Benton worked with the U.S. Navy to preserve the submarine’s sail and conning tower that are on display at the USS Triton Sail Park to honor submariners.  

Triton’s sail was the largest ever aboard an American submarine, measuring 75 feet (22.9 meters) long and 20 feet (6.1 meters) tall. The massive structure stowed retractable radar masts, radio antennas and periscopes when not in use.

Triton was the last U.S. submarine with a conning tower. This small water-tight compartment inside the sail protected critical equipment and command crew during a battle.

Visit the Public Park

Groups and individuals are encouraged to visit the sail park. The park is open year-round for self-guided tours of the vessel’s exterior with displays that share the story of this first-generation nuclear-powered U.S. submarine.

See Inside the Sail

Tours inside Triton’s sail must be scheduled with the Port by completing our tour request form and a liability release form.

During the tour, guests explore the submarine’s conning tower, where the original instruments are still in place and learn about Triton’s historical impact as a deterrent during the Cold War.

Tour guides also share the community’s rich military history, including our region’s role in World War II and the Cold War.

Interactive Journey

Click the link to follow USS Triton’s precise coordinates during the top secret Operation Sandblast mission and learn more about Triton’s history, construction and postwar life.

Visit the USS Triton Sail Park

To schedule a tour of the inside of Triton’s sail, please complete the required forms.  
Please complete one Liability Release Form per person and bring all forms with you to your scheduled tour.
One Tour Request Form per group. A Port employee will contact you to schedule a guided tour once the request has been submitted.

Triton tours are available March 15 – November 15.

Activity Worksheets for Elementary School Tours

Video Tour

USS Triton Sail Park Dedication

The dedication of the USS Triton Sail Park was held on November 10, 2011, in Richland, Washington, exactly 52 years after the submarine’s commissioning.

The USS Triton Sail Park overlooks the Port’s barge slip and high-dock facility on the Columbia River. The location is symbolic because the dock is where the Navy transfers nuclear reactor compartments from decommissioned vessels (including Triton) onshore for delivery to the nearby Hanford Site for permanent storage.

USS Triton History

USS Triton Crew

Closed, but still awesome.

  • 1st day of January (New Year’s Day)
  • 3rd Monday of January (Martin Luther King Day)
  • 3rd Monday of February (President’s Day)
  • Last Monday of May (Memorial Day)
  • 19th day of June (Juneteenth)
  • 4th day of July (Independence Day)
  • 1st Monday in September (Labor Day)
  • 11th day of November (Veteran’s Day)
  • 4th Thursday in November (Thanksgiving Day)
  • The day immediately following Thanksgiving Day
  • 25th day of December (Christmas Day)