Grand Tombant (L'Île-Rousse)
An isolated rock and 200 m long drop-off about 1.5 nautical miles off L'Île-Rousse, from 25 to 40 m. Big morays, groupers, purple gorgonians, sponges and fan worms, with salema, wrasse and gilthead bream; a posidonia meadow links it to the nearby Nazo shoal.
depth: 25–40 m