El Bajón (Mar de las Calmas marine reserve)
Marine-reserve site – diving only with a licensed centre under the reserve permit. El Bajón is a submerged volcanic massif with two humps, roughly 300–550 m off the southern tip of La Restinga; the crater lies at about 20 m, the peaks rise to 6–9 m, the seaward face drops about 80 m and the other walls about 50 m. Strong currents bring schools of barracuda, large amberjacks and dusky groupers, and manta rays are seen on strong-current days. It is the flagship dive of the reserve and, by the centres' own account, a difficult one.
depth: 6–50 m