The Caicos Bank drops off the northwest side of Providenciales in a series of coral walls that are among the finest dive sites in the Caribbean. The wall begins at around 15-20 metres and falls vertically to depths beyond recreational diving limits. The coral cover on the wall face is exceptional — black corals, sea fans, and sponges of enormous size — and the pelagic life attracted to the wall edge includes eagle rays, reef sharks, and occasional whale sharks.
Most dive operators on Provo offer morning two-tank boat dives to the wall sites, including Shark Hotel, Black Coral Forest, and the G-spot. Afternoon conditions can be choppy. Certification is required for wall diving; the better operators offer PADI courses for beginners who want to get qualified on the island.