Seaman Tyler Connor and Seaman Ethan Bray, both from Coast Guard Sector Columbia River, swim laps at the Astoria Aquatic Center in Astoria, Ore., Sept. 25, 2018.
Connor and Bray regularly train with the sector's aviation survival technicians as they physically prepare to enter AST A-School.
U.S. Coast Guard photo by Petty Officer 1st Class Levi Read.