A sailor assigned to an Underwater Construction Team climbs a ladder after diver-qualification training off the coast of U.S. Navy base Guantánamo on Feb. 12, 2017, in this Navy photo.
A sailor assigned to an Underwater Construction Team climbs a ladder after diver-qualification training off the coast of U.S. Navy base Guantánamo on Feb. 12, 2017, in this Navy photo. Petty Officer 2nd Class Sean Furey U.S. Navy
A sailor assigned to an Underwater Construction Team climbs a ladder after diver-qualification training off the coast of U.S. Navy base Guantánamo on Feb. 12, 2017, in this Navy photo. Petty Officer 2nd Class Sean Furey U.S. Navy