Icacos Cay (Spanish: Cayo Icacos) is the largest uninhabited cay forming part of a small chain of cays, reefs, and islets located off the coast of the barrio of Cabezas in the municipality of Fajardo in northeastern Puerto Rico.

Icacos is a fifteen-minute water taxi ride from Fajardo.

[1] The cay is a popular snorkeling and beach tourism destination.

For some time, there was a limestone quarry on the southern part of the island, with a short railroad system to shuttle limestone from the quarry to the pier.

This Fajardo, Puerto Rico location article is a stub.