

Inside the Brain Cave

Diving Cueva de los Cerebros
From the boat, we descend toward the cave entrance at around 10 meters. The broad opening leads into a volcanic tube where the blue Atlantic gradually fades, the rocky floor rises and falls, and the main passage opens into smaller branches and chambers. In some areas, fresh and salt water meet to create a shimmering halocline.
The cave takes its name from the rare brain-shaped sponges growing in its protected darkness. Bigeyes, Canarian lobsters, shrimp and brittle stars may be found around the walls and crevices, while stingrays sometimes rest beneath ledges near the entrance. The cave forms part of a Special Area of Conservation, making respectful movement especially important.
Depth is not the main challenge here. Darkness, overhead sections, ocean swell and the cave’s fragile interior require calm divers, clear communication and a carefully controlled route. Aquarius plans the dive around the actual conditions rather than following a fixed route regardless of the sea.
The confined passages and vulnerable rocky bottom show why clean trim and controlled finning matter, skills we develop further during our XTend on TB Trim and Buoyancy program.


