A Memorial Day service will be held on the deck of the Carnegie Science Center submarine, the U.S.S. Requin.
Science Center Curator of Historic Exhibits Patty Rogers says the ceremony will begin with a prayer and opening remarks.
Then, Rogers says veterans who served on submarines will toll a bell for each U.S. submarine that has been sunk, and cast flower petals onto the water.
The Marine color guard from the Three Rivers Leatherneck Detachment 310 will give a gun salute, and weather permitting, spectators will see a flyby of a vintage Stearman World War II biplane.
Rogers says visitors are welcome to mingle with the veterans after the service, and encouraged to explore the submarine.
The ceremony is free to the public and will begin at 10 a.m., lasting about one hour. Admission to the U.S.S. Requin is free for the remainder of the day.