Just 250 meters off the southern coast of Espiritu Santo lies a World War II wreck at a convenient depth for recreational diving. Not only that, the wreck is large, and almost completely intact, making it regarded as one of the best wreck dives in the world. This sunken ship is the SS President Coolidge, a cruise liner that was converted into a troop carrier during the war. But it didn’t sink due to an enemy attack. In October 1942, the Coolidge carried troops to Espiritu Santo’s bomber base to…