Crab Island is an island located in the mouth of the Berbice River in Guyana, located at 6.283°N 57.517°W / 6.283; -57.517.
Map of Crab Island, Guyana
Crab Island is so named due to the presence of numerous crabs there, and is approximately one mile in circumference. Before the British took over Berbice in 1815, the Dutch had a fort here called St. Andries.
References
Crab Island, Guyana Wikipedia(Text) CC BY-SA