Diving in El Hierro

El Hierro sits at the western edge of the Canary archipelago, a quiet counterweight to the resort diving of Tenerife and Lanzarote. The whole scene lives in La Restinga, a one-street fishing village at the southern tip, where almost every dive is organised around the Reserva Marina de La Restinga (Mar de las Calmas), established in 1996 as Spain's first marine reserve. The Cabinet approved expansion into the country's first fully marine national park in July 2024. Roughly twelve buoyed sites sit inside on the sheltered southwestern coast; about ten more lie on the exposed east coast, diveable only when the Alisios drop.

The signature dive is El Bajon, a twin-peaked underwater volcano rising from a sandy base near 100 m to summits 6 to 9 m below the surface, holding amberjack, dusky grouper and seasonal devil rays on its vertical walls. Conditions decide whether it runs; a week often yields only two or three Bajon windows. Baja Rosario, a shallow volcanic shoal rising to 7 m, is the aggregation site for the smalltooth sand tiger shark: one of three places globally where this deep-water species has been diveable in shallows, alongside Malpelo and parts of Lebanon. Sightings resumed in August 2025 after a six-year absence. El Saltu's ceiling tunnels, Cueva del Diablo's skylit cavern, El Desierto's sand-and-lava drop and Punta Restinga's shelves and arches read as an architecture tour in black lava. Visibility routinely clears 30 m.

Getting to El Hierro takes most of a travel day. Fly Tenerife Norte or Gran Canaria, then inter-island to VDE with Binter or CanaryFly (30 minutes, around 30 EUR), or ferry from Los Cristianos to Valverde (2 hours 20, once daily except Saturdays). La Restinga is 35 km south of the airport on a winding road. Fly in, ferry back is the standard pattern, because the ridge road climbs to 1,500 m and is a DCS risk after diving. Stay in La Restinga itself; apartments run roughly 40-50 EUR per night for two, and high season fills fast.

A typical day runs two morning dives on a zodiac, most sites under 15 minutes from the harbour, with groups of four to eight shaped by the reserve rule of twelve divers per buoy. Five diving days is the minimum to cover the reserve and, weather permitting, an east-coast window at Baja Bocarones, El Rio or Roque de Bonanza. October draws the strongest praise; winter brings colder water and thinner connections. Book El Bajon early through your centre and keep a harbour night dive on the schedule; several experienced divers call it almost the best thing about El Hierro.

Youngest Canary Island. Volcanic lava flows have built walls, arches, tunnels, pinnacles and black coral gardens. The insular shelf drops to 200 m within 300 m of shore and to 3,000 m further out.