Gaztelugatxe Reserve – Basque Country (Euskadi)
Site Overview
The Gaztelugatxe reserve near Bermeo is a protected stretch of steep cliffs and walls clad in lush kelp, home to large groupers, lobsters and sea bass in clear, cool Atlantic water. Limited access keeps the reef pristine and the fish bold, and the dramatic islet above is a Basque icon. Intermediate divers follow the walls at 8-28 m, while the surrounding coast offers easy boat access. Gaztelugatxe is a highlight of Euskadi diving. The site rewards careful planning, good buoyancy and respect for Spain’s marine-protection rules, and remains a favourite among divers who value dramatic volcanic or Mediterranean scenery, historic wrecks and rich marine life across a long, varied season. The site rewards careful planning, good buoyancy and respect for Spain’s marine-protection rules, and remains a favourite among divers who value dramatic volcanic or Mediterranean scenery, historic wrecks and rich marine life across a long, varied season. The site rewards careful planning, good buoyancy and respect for Spain’s marine-protection rules, and remains a favourite among divers who value dramatic volcanic or Mediterranean scenery, historic wrecks and rich marine life across a long, varied season. The site rewards careful planning, good buoyancy and respect for Spain’s marine-protection rules, and remains a favourite among divers who value dramatic volcanic or Mediterranean scenery, historic wrecks and rich marine life across a long, varied season.
Dive Briefing
"Boat from Bermeo to the reserve and descend along the wall, controlling any current and watching the kelp for groupers and lobsters. Follow the drop-off at 15-26 m, then ascend with a safety stop and careful air management. Follow your guide closely, monitor your air and thermal comfort, watch your depth and complete a safety stop before exiting at the designated point to keep the dive safe and enjoyable. Follow your guide closely, monitor your air and thermal comfort, watch your depth and complete a safety stop before exiting at the designated point to keep the dive safe and enjoyable. Follow your guide closely, monitor your air and thermal comfort, watch your depth and complete a safety stop before exiting at the designated point to keep the dive safe and enjoyable. Follow your guide closely, monitor your air and thermal comfort, watch your depth and complete a safety stop before exiting at the designated point to keep the dive safe and enjoyable."
Signature Marine Life
Grouper
Epinephelus marginatus
Best: Year-round
Lobster
Palinurus elephas
Best: Year-round
Sea Bass
Dicentrarchus labrax
Best: Year-round
Moray Eel
Muraena helena
Best: Year-round
Nudibranch
Chromodoris spp.
Best: Year-round
Safety & Hazards
- Current on the wall
- Kelp entanglement
- Depth and nitrogen management
- Cold water
- Limited access
Traveler Notes
Who is this for?
Suited to Open Water divers and above who want kelp walls, big groupers and sea bass in a reserve. It suits photographers and those seeking healthy Basque reef. Confident divers enjoy the deeper wall. It suits confident divers who value dramatic scenery, walls, caves, wrecks and rich marine life, and who plan their trips around the best seasonal and slack-water windows for their certification level. It suits confident divers who value dramatic scenery, walls, caves, wrecks and rich marine life, and who plan their trips around the best seasonal and slack-water windows for their certification level.
For Non-Divers
Non-divers can enjoy boat trips, coastal walks, beaches and local cuisine while divers explore the site.
Quick Stats
Dive Logistics
- Bermeo Diving
- Basque Dive Center
Photography Info
Best for: wide_angle, macro
Nearby Stay
Local Dive Lodge
Bermeo • 3km away
Coastal Guesthouse
Bermeo • 5km away