
Apnea Canarias
Freediving school and training facility inside Puerto Deportivo de Radazul, east Tenerife, operating since 2009, coached by elite competitive freediver Miguel Lozano with fixed training lines to -35/-45/-60m.
A sheltered harbour-side shore dive on Tenerife's E coast, scaling from an easy entry to a 55m volcanic cliff, with a 1995 diver memorial and a winter angel shark season.
Last updated July 2026
Paved stairs and ramps with railings put you in the water gently, which is part of why Radazul has such a loyal following. From the entry at around 2m, the bottom drops onto a deep reef, and by 12m you're passing La Pirámide, a distinctive pile of volcanic rock that serves as the bay's most reliable waypoint. From around 10m, one route runs south along the harbour breakwaters with the rock formation kept behind you, an easy line to follow even in the deeper stretches. Beyond that shallow structure, Radazul opens into a set of named routes for trained divers: El Bufadero, a volcanic tube system running 12-30m, and Cueva de Radazul, a cavern reaching 49m at its entrance. At 35m, a plaque marks a diver memorial, a genuine waypoint rather than an invented one. The site scales cleanly from a two-metre shore entry to a 55m volcanic cliff, all from the same beach.
Radazul's reputation rests on reliability first. When swell closes out more exposed coastline elsewhere on the island, this sheltered harbour bay stays calm and diveable, which is why local divers treat it as a dependable fallback rather than a second choice. What elevates it past that is scale: few single shore entries on this coast scale so cleanly from an easy two-metre start to a genuinely serious 55m wall for trained divers. The 1995 memorial plaque adds something rarer still, a sober, dated piece of the site's own history that gives Radazul a safety-conscious character you don't find in marketing-driven site descriptions. From September to February, it also becomes one of the stronger angel shark locations on this coast, seasonal and never guaranteed, but a genuine reason divers plan a winter trip here specifically.
The named sub-features give this site more distinct visual landmarks than most single bays offer: La Pirámide's rock pile, the tube-like passages of El Bufadero, and the tighter confines of Ali Baba Cave each ask for a different approach. Deeper walls, beyond the range most divers reach, carry black coral, gorgonians and sponge gardens, worth the extra planning if your certification allows it. In winter, a resting angel shark on the sand is the shot everyone wants, but the responsible version is a wide-angle frame from a respectful distance, not a close approach that disturbs an endangered animal.
Certification sets your ceiling here more than anywhere else in this cluster. Open Water covers the shallow entry and the 18m range comfortably; the 35m memorial dive and the 49m Cueva de Radazul cavern both sit past OW and AOW limits and call for Deep Diver training. Current usually stays mild across the bay but picks up specifically at Ali Baba Cave, so approach that route with a plan for turning back if it's stronger than expected. A 5mm wetsuit covers most of the year; step up to 7mm for winter, which is also angel shark season.
What makes this dive site stand out.
La Piramide, El Bufadero, Cueva de Radazul and more mark distinct sub-routes
A dated plaque gives the site an unusually sober safety culture
Stays calm and diveable when swell closes more exposed coasts
Critically Endangered sharks rest on sand, September to February, never guaranteed
One shore entry reaches a 55m volcanic cliff for trained divers
28.4012°N, 16.3236°W
Best May-October, with April-October favoured for optimal visibility
Contact a local operator for current pricing
Open Water covers routes to 18m; the 35m memorial dive and the 49m Cueva de Radazul cavern sit past OW and AOW limits and need Deep Diver-level training
Summary
Easy at the shallow entry, scaling to advanced and technical depths further out
Safety considerations
What can go wrong here, and what divers do about it. Conditions change - take the briefing from the operator on the day.
Book a guided dive at this site.

Freediving school and training facility inside Puerto Deportivo de Radazul, east Tenerife, operating since 2009, coached by elite competitive freediver Miguel Lozano with fixed training lines to -35/-45/-60m.

PADI 5-Star and CRESSI-affiliated dive centre in the Radazul Bajo shopping centre, east Tenerife, running its own Zodiac boat to Radazul, Las Eras, and Punta Prieta at Güímar, with a cruise-passenger pickup service.

SSI Instructor Training Center in Radazul, east Tenerife, owned by Alejandro 'Ale' Armas, with a genuine technical and rebreather diving line training to depths of -100m. Google rates it 5.0 across 186 reviews.

SSI 5-Star Diamond dive centre at Marina San Miguel, founded 2017 by marine biologist Roberta Bracale, running marine-biologist-led guided dives to 20+ south-coast sites.

SSI dive centre in El Medano founded 2021, running an unusually wide own-published excursion catalogue of shore and boat sites across south and north-east Tenerife.

SSI 5-Star dive centre and equipment store in Radazul, east Tenerife, with a full recreational-to-technical course ladder including Decompression Diving, an on-site classroom and pool, and guided trips reaching sites across the island.

PADI 5-Star dive centre in Radazul harbour, east Tenerife, running daily double and single-tank boat dives plus a structured island-wide 'Top 10 Tenerife' trip for advanced divers, TEC diving, and PADI Freediver.

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September through February, when they settle camouflaged on the sand within the bay. This species is Critically Endangered, so a sighting is never something to plan a dive around: give it space, let it rest undisturbed, and photograph from a distance rather than closing in.
A plaque at 35m, dated 22 April 1995, dedicated to a diver named Cesar Lopez, reading a warning to respect the limits of safety. It's a genuine, dated piece of the site's own history rather than an invented landmark.
The shallow entry works for all levels, and the site's reliability, staying calm when the rest of the island is rough, makes it a steady choice for training. The deeper named routes and the 49m cavern are for trained, experienced divers only.
The cavern route runs 32-49m, with the entrance itself at 49m, well past recreational limits and suited to Deep Diver-trained divers.
No formal protection covers this harbour bay, which is part of why access has stayed simple: turn up, walk down the stairs, and dive without arranging a permit first.
A volcanic tube system within the bay, one of several named sub-routes, running roughly 12-30m.
Both sit in the same E-coast cluster and share operators. Tabaiba is built around a deliberately sunk tugboat wreck; Radazul is built around volcanic terrain, a set of named routes at different depths, and its own angel shark season.
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