Feather star (Antedon mediterranea)

The blue sea beneath the crag at Beli conceals a cave with a narrow entrance 4 m below sea-level and another wider entrance at a depth of 18 m, which resembles a gaping mouth. Numerous organisms sway on the walls of the cave, including a Mediterranean feather star. The seabed in front of the cave is a flat mixture of silt and small stones. Ascent is through one of the cave tunnels where strong currents cut across the crag.