Cueva de Tossa

From the banyera at Mar Menuda beach, the route rolls over rocky terrain at a relaxed pace. Every formation along the way is riddled with holes. Morays peer out. Scorpionfish sit motionless on ledges. Octopus retract into crevices barely wider than a fist. The approach passes precoralligenous rock where a torch reveals forkbeard and spiny lobsters tucked into gaps. At 18 metres the cave appears: a compact opening roughly two metres deep. Inside, a conger eel occupies the back wall while European lobster cling to the ceiling. Spider crabs and shrimp fill the smaller cracks. One diver fits at a time. The torch does the work here, sweeping surfaces where every centimetre holds something alive.

Two metres of cave. That is the entire overhead environment, and it is enough. The cavern concentrates crustacean life into a space where nothing hides from a patient torch: lobster, conger, forkbeard, shrimp, spider crabs, all unbothered by a slow-moving diver. The exterior rock mirrors the same density at larger scale, hundreds of holes each hosting its own resident. What separates this from the broader Mar Menuda complex is that single focal point. Routes in Mar Menuda spread across three depth zones with dozens of variants; the cave gives the dive a destination. After dark the character shifts. European lobster and santiaguino shrimp emerge from recesses invisible during daytime. Local centres call it one of the most famous dives on the Costa Brava, not for depth or drama, but for the concentration of life packed into a small space.

Bring a torch. The cave interior and the hundreds of surrounding holes reward light more than any other piece of equipment. For the night dive, book through your dive centre in advance. Entry is from Mar Menuda beach through the banyera, a sheltered pool that simplifies gearing up. Summer beach access may be restricted between roughly 10:00 and 18:30; plan accordingly or use the marked divers' path. Water temperature at depth can reach 16 C in summer and 11 C in February below the thermocline. A 7 mm semi-dry or drysuit with hood and gloves covers winter diving. The cave sits at 18 metres, well within Open Water limits, and the route there is gentle enough for recently certified divers.