The Cayman Islands are located in the western Caribbean sea. The three islands are situated about 480 miles (770 km) south of Miami, 150 miles (240 km) south of Cuba, and 180 miles (290 km) northwest of Jamaica. Grand Cayman is by far the biggest, with an area of 76 square miles (197 km). The two "Sister Islands of Cayman Brac and Little Cayman are located about 90 miles (145 km) east of Grand Cayman and have areas of 14 square miles (36 km) and 10 square miles (25.9 km) respectively. All three islands were formed by large coral heads covering submerged ice age peaks of western extensions of the Cuban Sierra Maestra range and are mostly flat. One notable exception to this is The Bluff on Cayman Brac, which rises to 140 feet (42.6 m) above sea level, the highest point on the island.

Ref: Wikipedia

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