Piscinas, located on the northwest side of Berlenga Grande, is a shallow dive site characterised by a series of underwater canyons. The site is accessible only by boat and requires calm sea conditions with minimal wind. Divers typically explore depths ranging from 5 to 15 metres, with an average depth of 10 metres. At low tide, the area forms natural pools that are suitable for snorkelling. Conditions at this site are variable, with moderate currents and visibility averaging 15 metres. Water temperatures fluctuate between 15C and 19C throughout the year.

Cova Do Sono is a diverse marine site located at Berlenga Grande in the Berlengas Archipelago. The site features a combination of reef, cave, wall, and cavern topography, offering varied underwater structures to explore. Depths at this location range from 2 to 12 metres, with an average depth of 6 metres. Conditions are generally mild, with visibility typically between 10 and 15 metres. Access to the site is by boat only, as it is situated 10 kilometres from the shore. The site is suitable for beginner divers. Divers should remain aware of boat traffic in the area. Facilities including changing rooms, showers, and a rinse station are available.

Cova do Sonho on Berlenga Grande offers a diverse underwater experience featuring a combination of reef, wall, and cave topography. Suitable for beginners, the site ranges from 2 to 12 metres in depth with an average of 10 metres. Divers and snorkellers access the site from the shore, encountering mild currents and visibility between 10 and 15 metres. The cave section provides an overhead environment, requiring careful navigation and the use of a torch. Water temperatures fluctuate between 15C and 19C throughout the year. Facilities available on-site include showers, a rinse station, and gear storage to assist with post-dive logistics. Always remain vigilant for boat traffic during entry and exit.

Baía do Forte is a reef and cave site located at Berlenga Grande in the Berlengas Archipelago. The site features a reef structure and the Lagosteira cave, which presents an overhead environment for divers. Depths range from 5 to 13 metres, with visibility typically between 10 and 30 metres. Access is by boat. Water temperatures fluctuate between 15C and 19C throughout the year. Due to the presence of sea urchins, caution is advised. The site is suitable for intermediate divers and offers excellent conditions for snorkelling.

Gruta Lagosteira is a sea cave located at Berlenga Grande in the Berlengas Archipelago. This site offers a distinct cave environment with depths reaching up to 12 metres. Access is exclusively by boat, and the site is suitable for beginners due to the mild currents. Divers should be prepared for variable visibility and lower light conditions within the cave structure. Water temperatures range from 15C to 19C throughout the year, necessitating the use of a wetsuit. As this is a cave environment, divers must exercise caution, remain within their comfort zone, and avoid contact with the cave walls or any marine life encountered.

Carreiro dos Cações is a north-facing bay located at Berlenga Grande, featuring a mix of reef and wall topography. The site is suitable for beginners, with depths ranging from 5 to 13 metres and an average of 9 metres. Access is by boat only. Divers can observe common species including wrasses, flatworms, Felimare fontandraui, and Tompot blenny. Less frequently encountered life includes the common octopus, European common cuttlefish, Felimare villafranca, and bream. Rare sightings include gurnard, squat lobster, scorpionfish, barried anemone, tricolor doris, and slipper lobster. Visibility varies between 1 and 10 metres, and water temperatures range from 15C to 19C. Hazards include sea urchins and stonefish.

Baía da Flandres, located at Berlenga Grande in the Berlengas Archipelago, offers a shallow dive and snorkel experience ranging from 4 to 15 metres. The site features a small wreck and a cavern, accessible only by boat. Divers and snorkellers can encounter common species such as wrasses, flatworms, and Tompot blennies. Less frequently, the site hosts Common octopus, European common cuttlefish, sea stars, and various nudibranchs like Felimare villafranca and Felimare fontandraui. Scorpionfish, squat lobsters, slipper lobsters, and tricolor doris are occasionally recorded. With mild currents and visibility between 10 and 30 metres, this site is suitable for beginners. Water temperatures fluctuate between 15C and 19C throughout the year.

Recife dos Galos is a reef and artificial reef site located off Berlenga Grande. Divers can explore depths ranging from 5 to 22 metres, with an average depth of 20 metres. The site is accessible only by boat and is suited for advanced divers due to moderate to strong currents. Marine life includes common sightings of wrasses, flatworms, and Tompot Blenny. Uncommon species such as Common Octopus, European Common Cuttlefish, Comber, and nudibranchs like Felimare villafranca and Felimare fontandraui are also present. Rarer encounters include gurnard, squat lobster, scorpionfish, slipper lobster, and the tricolor doris. The site features slopes where John Dory are frequently observed sheltering among the algae.