Together with Cayo Botella off the northwestern point, and Pelá and Pelaita to the west, Culebrita belongs to the barrio Fraile of the main island of Culebra.

[1] Culebrita is a coral island approximately 1 mile in length and a tourist spot.

Sea turtles Tina and Ike call Playa Tortuga home.

The second lagoon, referred to as the eastern tidal flat, is located near the middle of the island's west coast and covers about 0.9 acres (0.36 ha).

In 2006, an environmental and cultural resource survey of Culebrita was carried out by Southeastern Archaeological Research (SEARCH) of Jonesville, Florida and Ellis Environmental Group, LC, in conjunction with the U.S. Army Corps of Engineers (USACE), Huntsville in order to identify “cultural resources, sensitive habitats, and endangered plants and animals that may exist” on Isla Culebrita.

Endangered green sea turtles (Chelonia mydas) were also observed on the island.