Berlengas Islands

Peniche · Centro · Portugal

The Berlengas Islands are a small archipelago of granite islets lying 10 kilometres off the Portuguese coast near the fishing town of Peniche, designated as a UNESCO Biosphere Reserve since 2011 for their exceptional marine and terrestrial biodiversity. The main island, Berlenga Grande, rises dramatically from the Atlantic with fortified walls and a 17th-century fortress perched on its cliffs. But it is below the waterline that the Berlengas truly excel, offering some of the finest diving on Portugal's mainland coast. The underwater topography is spectacular. Massive granite boulders have tumbled from the cliffs over millennia, creating a labyrinth of swim-throughs, tunnels, and overhangs at all depth ranges. The rock faces are covered in vibrant growth: orange and yellow sponges, sea fans, anemones, and dense kelp forests in the shallower areas. The combination of upwelling nutrients from the deep Atlantic and the protection of the marine reserve has produced an environment teeming with life. Conger eels of impressive size inhabit almost every suitable crevice, and it is not unusual to see half a dozen on a single dive. Octopuses are equally abundant, hunting openly across the granite in the confidence that the marine reserve offers protection. Large schools of white sea bream and two-banded bream swirl around the reef, while wrasse in vivid greens and oranges dart between the rocks. Lobsters wave their antennae from sheltered overhangs, and spider crabs cluster on the exposed surfaces. The real thrill for many visiting divers is the chance of encountering an ocean sunfish, or mola mola. These extraordinary creatures, which can weigh over a tonne, visit the Berlengas waters during summer months to be cleaned by smaller fish at specific cleaning stations on the reef. Seeing a sunfish materialise from the blue is one of the great wildlife encounters in European diving. Water temperatures are cooler than Mediterranean standards, typically 15 to 20 degrees in summer, requiring a good wetsuit or semi-dry. Visibility varies with conditions but frequently reaches 15 to 25 metres during settled weather. The boat ride from Peniche takes 30 to 45 minutes, and operators schedule dives around the tidal conditions that can produce moderate currents around the islands. The Berlengas combine the accessibility of a day trip from Lisbon with the wildness and richness of a genuine Atlantic marine reserve.