The Mendhoo region comprises four lagoons, featuring distinctive elements such as two lagoons with sandbanks and one lagoon hosting an island. The remaining two lagoons stand out for their remarkably high biodiversity, housing a thriving population of hard and soft corals, along with various marine invertebrates and vertebrates.

Notably, the sandbank serves as a nesting site for both green and hawksbill turtles.

On Mendhoo island, the environment is conducive to nesting and roosting for the Lesser, Black-Napped, Greater Crested, and Brown Noddy Terns, as well as the Lesser Frigate bird.

This diverse ecosystem contributes significantly to the overall ecological richness of the Mendhoo region.