La Amatista

The shelf below La Isleta del Moro reads like a piece of the cliff continued underwater. Anchor on rocky bottom at five metres, descend to seven, head east, and the first of six volcanic canyons opens up cut perpendicular to the shore. The walls are dark stone pocked with crevices where morays, conger and the occasional octopus shelter, and the canyons drop in steps to roughly thirteen metres before the floor levels at fourteen. Between cuts the seabed shifts: Posidonia oceanica meadows carpet the sand, and standing among the seagrass blades are the nacras. Pinna nobilis fan mussels can pass eighty centimetres, anchored upright like dark sails. Salemas pass through grazing the meadow. Dusky groupers hold position at the canyon mouths. The return runs along the upper shelf at five to six metres, looping back to the anchor with air still in reserve.

La Amatista is the easy-day dive of the La Isleta del Moro roster, and that is the point. The shallow canyon system is rare on this coast at Open Water depths, and the standing Pinna nobilis specimens carry conservation weight that bigger, deeper Cabo de Gata sites cannot match. A 2007 forum write-up by an Almeria regular framed it as one of the dives "where it is very easy to see groupers", and centre rotations a decade later still treat it the same way. The cliffside identity helps. Above water the Mirador de la Amatista pulls hikers to photograph the volcanic cliffs; below, divers swim through the same volcanic rock, named after a hill whose interior holds chalcedony and amethyst quartz. That land-and-sea continuity is unusual in the park's catalogue and gives the site a character that survives even when the Mediterranean has a slow plankton day.

Buoyancy is the headline skill here. The Posidonia and the Pinna nobilis anchored in it are both protected, and the canyons concentrate fin wash in a way open shelves do not. Stay off the seagrass. Centres in La Isleta del Moro and Las Negras handle the reserve permit administratively, so divers booking through them have nothing to file. Independent shore diving (infanteria) is a separate process running one to four weeks depending on the season, and night diving on the independent permit is not allowed at all. A torch is worth carrying for the canyon-wall crevices. With a fourteen metre maximum, this is a dive that pairs naturally as the second dive of a day, with something deeper before or after.