Las Hermanicas

A volcanic shelf runs along the cliff base below Monte del Fraile in two clean steps, an upper platform at five metres and a lower one at twelve, with canyons cut perpendicular between them. The boat anchors on the upper step. Drop down the slope to the lower platform and the topography reads at once: short canyons slicing the shelf, overhangs on the cliff side, sand and Posidonia patches running off into open water. Dusky groupers hold the canyon mouths. Moray eels watch from the crevices, forkbeards (brótola locally) shelter under the overhangs, and red scorpionfish blend into the ledges so completely that a guide's eye helps. The bottom-time portion stays on the lower step, working canyons and peering into cracks for small fish, then climbs the slope to finish along the upper shelf with saddled seabream and salema drifting overhead. At this depth, sixty minutes is comfortable on a standard tank.

The site earns its slot in the Cabo de Gata rotation by being calm when the headline sites are not. The cliff blocks the easterly wind that regularly closes the eastern-exposed reefs, so centres lean on this cove as the reliable fallback day. The diving reason is denser than the wind story. The two-step shelf compresses the park's three core habitats — volcanic rock, sand, and Posidonia oceanica — into a small footprint, which is why one independent guide describes it as a general overview of the park's seabed types. The canyon mouths read as a beginner-friendly version of what the deeper Cabo de Gata sites do at larger scale, and the resident groupers under the overhangs deliver the headline encounter on Open Water depth. A visiting diver running a four-site rotation from La Isleta del Moro in October 2023 named Las Hermanicas his standout — a one-line favourite call from someone who had already dived the deeper stars on the same trip.

Pair it with something deeper from La Isleta del Moro and let the shallow profile stretch the bottom time and off-gassing while still delivering encounters. The boat is the practical entry: the land approach to Cala Hermanicas is rough and only confirmed for snorkelling and swimming, so for full scuba kit take the boat. Centres handle the reserve permit administratively for booked clients. Independent shore divers need the separate infantería permit from the Junta de Andalucía (3 months validity, 1-4 weeks online via Cl@ve, next-day in person at the Rodalquilar park office), and night diving is not allowed under that permit. Carry standard safety kit — computer, surface signal, torch for the canyon-wall cracks. Trim and buoyancy keep you clear of resting scorpionfish on the ledges, and the no-contact rule applies to the Posidonia margins and the rocky shelf alike.