Salt Cay's diving is rated among the best in the Turks and Caicos, which is high praise in an archipelago known for exceptional reef diving. The barrier reef drops from about 12 metres directly into a 2,000-metre wall — dramatic topography with excellent clarity, abundant coral, sea fans, sponges, and fish life including reef sharks, rays, and turtles.
Salt Cay Divers is the island's main dive operation, running small groups on personalised trips. The lack of crowds and boat traffic compared to Providenciales gives the diving here a different quality — quieter, more focused on the underwater environment rather than the resort experience. The HMS Endymion wreck sits in accessible depths and is worth a dedicated dive. Certification courses are available for beginners.