Dofí Sud

The bronze dolphin sits at 12 metres at the southern mouth of a system that cuts clean through Meda Petita. A typical guided run drops in close to the south face, descends along a wall where red coral predominates, and stops at the statue for the photo most divers came for. From there the route forks. The short tunnels, all at or above 18 metres, stay wide enough that daylight reaches every section and the next exit is only a few metres away. The longer commitment is La Catedral, a 65 to 70 metre passage entering at 20 metres and exiting at 25 to 27 metres, with both walls covered in large gorgonian fans. The through-route emerges on the north face at about 5 metres, fully lit, opening into bright water on the opposite side of the island. Outside, the south face continues as exterior reef down to 30-35 metres for divers wanting a longer bottom phase.

The dolphin statue is a named, recognisable feature in a marine reserve where almost no human artefact has been placed for divers. Most centre briefings in L'Estartit mention it. The second draw is the through-cavern light play. The five-metre exit on the north side is one of the most consistently photographed images of Costa Brava diving, with diver silhouettes emerging into blue. The third is profile flexibility. Centres can run the same mooring at three layers in the same week: the dolphin loop and short tunnels for newer divers down to about 18 metres, the Catedral through-route for AOW level, and exterior reef for those wanting open water. Few Medes sites pack that range into one site.

Wide-angle is the lens for this dive. The chimneys overhead and the tunnel mouths together produce points of natural light inside the passage at all times, and the through-route exit at 5 metres is the canonical Costa Brava cavern composition. The red coral wall just before the southern tunnel mouth at 12 metres is the close-up subject divers pair with the cavern shots. Inside the tunnels the Swiss-cow nudibranch (likely Peltodoris atromaculata) appears in good numbers and is large enough to fill a frame. Time the dive for high midday sun in summer to push the contrast between the lit exits and the shadowed cavern walls.

Buoyancy is the load-bearing skill. Silt rises fast under cavern ceilings, and exhaled air collects against the rock and damages the encrusting life over time. Hover mid-water and stay off low ceilings, and do not pause directly under fragile sections. Carry one torch at minimum and a backup if you commit to La Catedral. Nitrox 32% extends bottom time on the Catedral route where 25 metres eats into your no-decompression limit. Bring a hood and a 5 mm wetsuit for summer. Visiting divers in 3 mm suits regularly find the cavern water too cold and end up swapping to 5–6 mm. Try dives and Open Water training are not allowed inside the reserve, so beginner sessions run on the Montgrí coast rather than at Dofí Sud.