Cap d'en Font

Entry is through the Moon Pool, a large entry cavern at 17 metres. From there the route rises up the wall and passes through a freshwater halocline, where the water goes briefly out of focus, into an inner cave at only about 3 metres. That climb from 17 metres to 3 inside the rock is the character of the system as a whole: chambers stacked at different depths, joined by narrow corridors.

The other chambers are named for what is in them. Tom's Belfrey lets divers surface deep inside the cavern under a display of stalactites, at 24 metres; The Organ Loft, also 24, is dense with stalactites and stalagmites. The Cathedral is the biggest of them, at 26 metres, naturally lit with diffused turquoise light, and a single rock sits on its floor like an offering left to a forgotten marine god.

Binibeca Diving lists the same chambers under their Catalan and Spanish names — catedral, organo, campanario and pozo de la luna — with two more, Scorpions and Fossils, and describes the whole as narrow corridors with several air chambers. Outside on the cliff walls there are nudibranchs, moray eels and octopus; inside, prawns, crabs, cardinalfish and scorpionfish. Scubago advises two dives at least.