Caló d'en Monjo

The L-shaped tunnel entry at 5m is Caló d'en Monjo's first commitment — wide enough for a small group, it opens with natural light from the cove and narrows briefly into the rock before releasing divers into a rocky chamber. From here, the cave with the air pocket lies a short swim away: the ceiling breaks the waterline inside, and you can surface briefly in a space lit only by torchlight and reflected water light. The echo of bubbles against the rock ceiling is the distinctive detail divers remember. Back outside, the outer wall builds toward 18m where arches interrupt the rock face and the site opens into blue water. A full tank covers the tunnel, cave pocket, and a circuit of the outer wall; those who move slowly through the overhead sections often find they have air remaining for a second look at the arches. The 18m ceiling on the main profile keeps bottom time manageable and makes this a reasonable follow-up to a deeper morning at the Ponent reserve sites. Experienced pairs can extend into a narrower inner cave beyond the main chamber.

In the SW corner of Mallorca — a zone defined by El Toro's open-water buoyed points — Caló d'en Monjo stands apart by going underground. The tunnel through solid rock and the chamber where divers briefly surface offer a different kind of engagement: navigation rather than just observation. Morays coil in the tunnel crevices, groupers hang in the wall shadows, and scorpionfish occupy the arches almost invisibly. The inlet sees far lighter diver traffic than the reserve quota points. On a calm spring morning the water inside the tunnel is blue-green and exceptionally clear. The inner cave extension — darker and tighter — rewards overhead-experienced pairs with crustaceans and bryozoans that casual reef traffic never reaches.

A torch is mandatory — the tunnels and cave chamber require one, and the inner extension is completely dark without a reliable light. Shore access exists via a forest path from the Cala Fornells parking area (roughly 2km walk); most visiting divers arrive by boat from Peguera or Camp de Mar. The inlet faces south-east, so sirocco and SE wind can make conditions rough with little warning — check the forecast on the day. Good buoyancy control matters in the overhead sections, both for personal safety and to avoid disturbing the encrusting life on the tunnel walls.