The tourism industry on the Cayman Islands caters to divers, with many resorts and condominium complexes having in-house diving operations offering course work, daily excursions, scuba equipment sales and rentals.
Popular dive sites include the Kittiwake, which is located on the northwestern tip of Seven Mile Beach, and the 12-foot divesite of Stingray City.
There is very little runoff of silt or fertilizers from the land, and the steep walls result in the reefs being unusually close to deep ocean water.
Marine life in Grand Cayman includes tarpon, silversides, French angelfish, and Barrel Sponges, among others.
[1] Both of the 'sister islands' are thin strips of land lying roughly east to west, and the diving is divided between the north and south sides.