The islands are located 18 kilometres from the estuary of the Approuague River,[1] and are part of the commune of Régina.

[2] As of 1992, the islands and surrounding ocean are part of the Île du Grand Connétable Nature Reserve.

It is nesting site for many birds like the Magnificent frigatebird (Fregata magnificens), the Cayenne tern (Thalasseus eurygnatha), the Royal tern (Thalasseus maximus), and the Laughing gull (Leucophaeus atricilla).

[4] In the late 19th century, phosphates were mined from Grand Connétable by France.

On 8 December 1992, the islands and large ocean perimeter, was designated as the first nature reserve of French Guiana.