Diving in Spain

Cabo Peñas, the most prized dives on this coast

Rock passages and a domed rock formation at a reserve island off Santander

Ocean sunfish at a cleaning station off the Ratón de Getaria

Centuries of shipwrecks along Galicia's Costa da Morte

Granite shoals, kelp and wrecks in and around the Ría de Arousa

Schist walls, tunnels and red gorgonian fans at the Pyrenees' end

Kelp and granite in cold Atlantic water at the mouth of the Ría de Vigo

Tunnels, walls and a shallow wreck under the Montgrí cliffs, dived from L'Escala

Dusky grouper by the dozen inside a Costa Brava marine reserve

Three seamounts, a navy-tug wreck and gorgonian walls between Palamós and Cap de Begur

A cave system below the Eden Roc hotel, entered at 25 m from the beach or by boat

Town-based Costa Brava diving over granite rock and Posidonia

A Luftwaffe bomber, harbour wrecks and an underwater park off a working breakwater

Long limestone caves and the 110 m Malakoff wreck off one Balearic island

Formentor's cliff walls and a maze of shallow tunnels, run from Port de Pollença

A drowned volcanic crater 50 km offshore, with permit-limited diving

Large resident groupers on El Toro's reserve buoys, ten minutes from the marina

A permit-only national park off Mallorca, capped at 40 divers a day

A sunlit limestone cavern, the Don Pedro wreck and the Es Vedrà pinnacles

Boulder passages in the San Antonio reserve and a cave-training coast from Moraira

Large groupers on the protected rocks of a 1986 marine reserve

Dusky groupers the size of car doors patrol two submerged mountains

A zoned 2016 marine reserve, a sunk minesweeper and a 3 km hypogenic cave

A 1941 merchant wreck off the Guadiana and rock slabs off El Rompido and Isla Cristina

Giant groupers in volcanic caves along Andalusia's largest coastal protected area

Orange Astroides walls on a protected cliff coast, dived from a sheltered bay

Atlantic and Mediterranean dives on one island

Gorgonian-clad rocks where the Atlantic meets the Mediterranean

Fish-packed volcanic labyrinths in one of Europe’s largest marine reserves

Three hundred concrete figures stand at 14 m in Europe's underwater museum

Lava arches, tunnels and a black-coral tower wall from 5 m to about 40 m

A 1.5 km volcanic reef stepping from 7 m to past 40 m off Caleta de Fuste

Black sand and lava arches metres from shore, with resident pilot whales

A protected shore-dive bay and a 100 m wreck off the island's capital

Lava arches, canyons and tunnels reachable from a rocky beach entry

Volcanic walls dropping past 100 m beside a volcano that erupted in 2011