Cay
Small island formed on the surface of a coral reef / From Wikipedia, the free encyclopedia
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"Sand cay" and "Cayes" redirect here. For the South China Sea island, see Sand Cay. For the city in Haiti, see Les Cayes.
Not to be confused with Quay.
For other uses, see Cay (disambiguation).
A cay (/ˈkiː, ˈkeɪ/ KEE, KAY), also spelled caye or key, is a small, low-elevation, sandy island on the surface of a coral reef. Cays occur in tropical environments throughout the Pacific, Atlantic, and Indian oceans, including in the Caribbean and on the Great Barrier Reef and Belize Barrier Reef.