This dive site, known as AQUÁRIO, offers a unique underwater experience in Portugal, distinguished by its submerged stone stairs leading to an irregular bottom. It is one of the few locations globally where divers can observe volcanic gases being released directly underwater, creating an ethereal and geologically fascinating environment. The site is primarily navigated by following the natural contours of the bottom from the shore.
The marine life, though generally of small size, is quite varied. Divers can expect to encounter species such as Parrotfish, pompano, dusky grouper, common octopus, white trevally, yellowmouth barracuda, chub mackerel, blue mackerel, bogue, almaco jack, and sea chub. The irregular rocky bottom provides ample habitat for these diverse smaller species.
The best time to visit AQUÁRIO is typically during the warmer, calmer months for optimal visibility and comfort. This site is particularly appealing for those interested in unique geological features alongside marine observation. Both divers and freedivers will appreciate the accessible depths and the rare chance to witness active underwater volcanism. Divers should maintain good buoyancy due to the irregular bottom.

