La Piscina

The boat from Tarifa harbour runs out to Isla de las Palomas in about five minutes and moors over the site's mooring buoy on the east side. Two ways down: the buoy line to around 14 metres, or a free descent over the shallow end at 6 metres. The shallow end is where the name comes from. Sandy clearings sit between rock outcrops, pale and pool-like, and on a clear day you can pick them out from the surface.

From there the dive is a slow wander through a boulder field rather than a route to one feature. Blocks the size of small buildings lean against each other; sand alleys run between them; yellow cup coral covers the vertical rock faces. Moray eels are everywhere in the cracks. Octopus and conger eels work the deeper holes, scorpionfish sit flat on the substrate, and the odd lobster tucks under a big boulder where rock meets sand. The slope tips down gradually into denser block chaos at 18 to 25 metres, where the topography closes up and any current becomes more obvious.

Direction follows the tide. On a flood the centre sends you north against the flow so you ride it back; on an ebb, south is the easier line. A standard plan stays around 18 to 22 metres, runs 40 to 50 minutes, and surfaces at the buoy. Less experienced divers can stay on the 4-to-12-metre upper platform and still find octopus and morays in the rock.

La Piscina is the easy-going member of the island's east-face cluster. The shallow platform gives instructors a natural confined-water arena, which is why open-water students do skills here and why centres flag it as suitable for any certification level. On most boat trips one group stays up on the platform while a more experienced group drops into the deeper terrain, both on one dive plan.

What it lacks is the wall drama of Punta Marroquí or the iron of the San Andrés paddle steamer. The character here is texture and density inside an approachable topography. The water runs cool and surge-prone, more like temperate Atlantic diving than postcard Mediterranean. The boulders hold small life in quantity, and the tight passages between them ask for basic finning control, not overhead-environment training. Some divers rate this cove among the better island spots for loggerhead turtles in summer, and there are accounts of sunfish settling near the bottom to be cleaned by smaller fish when the tide runs hard. Neither is something you plan a dive around. They are the upside on a day that already works as an unhurried critter hunt.

Bring a macro setup. The reliable rewards here are small and slow: moray eels framed in the rock cracks, octopus on the sand-and-rock margins, scorpionfish you only spot when you slow down, and nudibranchs along the boulder faces. Divers describe a single dive that turned up four species, a large Giant Doris among them. A torch earns its place for picking those subjects out of the shaded crevices and lighting the yellow cup coral on the rock.

Wide-angle is the seasonal bet. Loggerhead turtles transit the cove in summer, and a sunfish may drop in to be cleaned, on its side near the bottom while smaller fish work it over. Both reward a diver who keeps glancing up rather than staring at the rock. Look under the big boulders on the sand for lobster, which divers here have found folded into the gaps.

Tides set the timetable, not the dive shop's hours. The centre picks the dive time and the day's site rotation from the tide tables and the wind, often the morning of, so check before you leave for the harbour. Levante, the east wind, is what cancels this east-face site; when it blows, the boats move to the island's sheltered side. Independent diving is not possible around the island, so this is always a centre-run boat dive.

Dress warmer than the latitude suggests. The Atlantic flow runs the water cool, cooler than almost anywhere on the Spanish Mediterranean, with bottom temperatures around 15 to 17 even in August. A 7mm and hood through summer, semi-dry or drysuit in winter, and keep hood, booties and gloves on through the year. Small iron debris lies on the sand near the deeper blocks; keep your trim and stay off the bottom and it is a non-issue. Carry a torch and an SMB. Nitrox is available locally and worth it for the deeper dives.