Cabeço Submarino is a reef formation located off the coast of Sueste Bay in Fernando de Noronha. This site is accessible only by boat and is suited for advanced divers due to strong currents. The topography allows for a spiral ascent along the reef structure, reaching depths between 8 and 23 metres with an average of 15 metres. Visibility typically ranges from 15 to 30 metres. Species recorded around this area include nurse sharks, green and chain morays, great barracuda, French angelfish, blue tang, black durgeon, groupers, spiny lobsters, peacock flounder, scrawled filefish, stoplight parrotfish, and various wrasses.

Praia do Sueste is a protected bay located on the Mar de Fora side of Fernando de Noronha. This site is suitable for beginners and is accessed directly from the shore. Snorkelling is strictly regulated, with activity permitted only within a designated right-hand zone. The site features a reef environment with depths ranging from 2 to 10 metres, averaging 5 metres. Visibility is generally high, between 25 and 40 metres, though visitors should be aware of mild to strong currents. Water temperatures remain warm throughout the year, typically between 27 and 29 degrees Celsius. A cafe is available on-site for visitors.

Trinta Réis is a dynamic dive site off Fernando de Noronha that features a combination of wall and reef topography. Designed for intermediate divers, the site is accessed exclusively by boat. Divers can expect depths ranging from 12 to 22 metres with visibility typically between 20 and 30 metres. The site is defined by its moderate current, which can strengthen, requiring divers to manage their positioning along the wall. Water temperatures remain consistent between 27 and 29 degrees Celsius throughout the year. Due to the potential for strong currents, divers should brief with their guide regarding tidal conditions before entry and remain close to the boat at all times.

Ilha do Frade is a reef dive site located on the outside sea of Fernando de Noronha, Brazil, directly in front of Atalaia beach. This site requires boat access and is suitable for advanced divers due to moderate currents. Depths range from 8 to 21 metres, with visibility varying between 5 and 30 metres. Water temperatures remain consistent throughout the year, ranging from 27C to 29C. Species recorded around this area include nurse sharks, French angelfish, Brazilian reef octopus, chain moray, great barracuda, green moray, wrasses, groupers, black durgeon, blue tang, spotfin butterflyfish, Christmas tree worms, spiny lobster, and honeycomb cowfish.

Baía do Sancho is a reef site in Fernando de Noronha, Brazil, offering visibility between 25 and 50 metres. The site is suitable for beginners, with depths starting at 2 metres. Divers and snorkellers can access the reef from the shore or by boat. Conditions are generally mild, though surf and sharp coral are present as hazards. Marine life observed at the site includes common wrasses, sergeants, Sally Lightfoot crabs, and grunts. Less frequently, divers may encounter French Angelfish, nurse sharks, groupers, blue tang, scrawled filefish, zoanthids, horse eye jacks, soldierfish, and kelpfish. The bay is highly rated for snorkelling, particularly near the far-right cliff wall.

Bahia do Sancho is a marine park site featuring a mix of natural reef and artificial reef structures. Divers can explore depths ranging from 7 to 30 metres, with an average depth of 16 metres. Visibility typically spans 15 to 30 metres, and water temperatures remain warm between 27 and 29C. The site is suitable for intermediate divers, with mild currents present. Entry is possible via both shore and boat. Be aware of surge in shallower sections and exercise caution around sharp coral and rocks. Due to vessel movement in the area, maintain a visible marker buoy at all times and remain vigilant for boat traffic.

Baía dos Porcos in Fernando de Noronha is a reef site defined by dark volcanic rock formations. The site is shallow, with depths ranging from 1 to 10 metres and an average of 5 metres. Access is via the shore, and the area is well-suited for snorkelling, which holds a 5/5 rating. Divers and snorkellers should be aware of potential rip currents, surf, and sharp coral in the area. Visibility is generally good, typically between 20 and 50 metres. Water temperatures remain consistent throughout the year, ranging from 27C to 29C. The site is best explored at low tide when natural pools form among the volcanic rocks.

Laje dos Dois Irmãos is a reef and wall site located in Fernando de Noronha, Brazil, requiring boat access. Divers can explore depths ranging from 11 to 24 metres, with an average depth of 18 metres. The site features mild currents and visibility typically between 15 and 30 metres. Marine life recorded at this site includes common sightings of wrasses, grunts, and Sally Lightfoot crabs. Less frequently, divers may encounter French Angelfish, Nurse Sharks, Scrawled Filefish, groupers, Blue Tang, sergeants, soldierfish, zoanthids, Horse Eye Jacks, and kelpfish. Due to the presence of sharks, surge, and potential for strong currents, this site is best suited for intermediate divers.