Cayo Batata is an uninhabited, grass-covered island, located at , east of Morro de Humacao, the closest mainland feature (which is immediately south of the mouth of RÃÂo Humacao), in Humacao, Puerto Rico.
The island is rectangular with sides between in length. It is up to high. The area is (Block 3060, Block Group 3, Census Tract 1805, Humacao Municipio, Puerto Rico). The island is part of RÃÂo Abajo barrio of Humacao.
A bare ledge, with five rocks and a reef, called Caballo Blanco (literally, White Horse, not to be confused with the islet of same name northwest of Vieques) awash and steep-to, is located east and south of Cayo Batata.
Cayo Santiago (Monkey Island), the second island belonging to Humacao, is located to the northeast.