Grand Anse Beach, Grenada One of the big attractions here is some of the clearest water in the Caribbean, the pristine sea floor sloping away gently at first and dropping off into navy blue depths. But even 90 feet from the shore, the visibility is exceptional and the sea teeming with life.

The Caribbean is world-renowned for its turquoise hues, but the clearest water is typically found in the Exumas in the Bahamas, the Turks and Caicos Islands, and the Cayman Islands. These areas benefit from a unique geological composition consisting largely of calcium carbonate and coral sand, which doesn't cloud the water like silt or runoff from large rivers might. In the Exumas, the water is often so transparent that you can see the shadow of a boat on the sea floor several meters below. Turks and Caicos, specifically Grace Bay, consistently ranks at the top for clarity due to its deep offshore trenches that allow for constant water circulation. The Cayman Islands are also famous for "Stingray City," where the visibility often exceeds 30 meters (100 feet). Other notable mentions include the Virgin Islands and the "ABC" islands (Aruba, Bonaire, Curaçao), which sit outside the hurricane belt and maintain exceptionally calm, clear conditions year-round. These locations are the gold standard for snorkelers and divers who prioritize high-definition underwater views and that quintessential "swimming in a pool" aesthetic in the open ocean.