The biggest draw to the island is the wreck of the SS President Coolidge, a WWII troop carrier sunk by friendly mines in 1942. The majority of people traveling to Santo are divers who come for the expressed purpose of exploring this famous wreck. As such, there aren't many things to do in town other than to visit the local dive shops and organize some diving. Aquamarine is on the road opposite of the Unity Shell station and features a friendly and very experienced staff. They can take care of all your equipment needs and boast wide variety of Padi certified scuba courses at very competitive rates.