The Island of Capraia is a volcanic island with high and rocky coasts, which is predominantly covered in natural vegetation. Its waters host populations of Cystoseira spp. and Porifera, but lack areas dominated by Cnidaria. The area is important for the nesting of various species of marine and terrestrial birds, including the white-breasted cormorant, Audouin’s gull, and Scopoli’s shearwater. The island is also the habitat for endemic species such as the European leaf-toed gecko and the Sardinian tree frog. After having been the site of a penal colony, Capraia is now part of the Tuscan Archipelago National Park, contributing to the preservation of the high biodiversity of marine ecosystems.