Rocha Negra

A wall and reef of black volcanic rock rises from the seabed off the Lagos-Praia da Luz stretch of the Algarve, running from an eight-metre shelf down to an eighteen-metre base. A third operator gives a single mid-point figure of sixteen metres for what it calls a multilevel dive, comfortably inside that range. The rock is well overgrown, its surface dense with a wide range of nudibranch species that has made the site a regular stop for underwater photographers. Divers reach it by boat out of the Lagos sector.

Black volcanic rock sets this wall and reef apart on a stretch of the Algarve where the diving usually runs through pale sedimentary rock, giving Rocha Negra a darker colour and a rougher texture underwater. Its main draw is what covers that surface: nudibranchs in enough variety that more than one Lagos-sector operator names the site specifically for macro photography. What sticks with divers here is that surface life itself. There's no single named landmark and no fixed route through it, just a wall and reef known for what colonises the rock.

Rocha Negra is a boat-only dive; no shore-entry route is documented. At least three independent Lagos-sector dive centres name it on their own websites, and none of them treats it as an exclusive site. Current strength isn't documented for this site specifically, so ask the boat crew about it on the day instead of assuming calm water.