Arcos dal Calhetas is a reef and cave site located 300 metres off the coast of Sao Miguel in the Azores. Reached exclusively by boat, the site features depths ranging from 5 to 18 metres, with an average depth of 15 metres. Divers encounter variable currents and visibility between 15 and 40 metres. The topography includes overhead cave sections that require careful navigation. Due to the overhead environment, this site is suited for intermediate divers. Water temperatures fluctuate between 17C and 23C throughout the year. Night diving is permitted at this location, providing an alternative perspective on the reef and cave structures.

Buraco de São Pedro is a wall dive located off São Miguel in the Azores. The site features a vertical structure that drops from 2 metres down to 30 metres. Divers and snorkellers should expect moderate currents and potential surge, particularly near the surface. Visibility is variable, ranging from 5 to 40 metres depending on local conditions. Access to this site is exclusively by boat, as shore entries are hazardous due to surf and shore break. Given the potential for intensifying currents and surge, divers should follow guide instructions for descent. Water temperatures fluctuate between 17C and 22C throughout the year, requiring appropriate thermal protection.

Porto das Capelas is a shore-accessible wall and reef site located in Sao Miguel, Azores. The topography features depths ranging from 3 to 20 metres, with an average depth of 6 metres. Divers experience moderate currents and highly variable visibility, which can fluctuate between 5 and 40 metres depending on Atlantic conditions. Entry requires careful timing to navigate the shore break and surf zone, where sharp rocks and coral are present. Sturdy boots are recommended for the shoreline. Parking is available on-site, and typical dives last approximately 45 minutes. The site is suitable for beginners, though the entry demands attention to wave sets.

Lavakita is a boat-access site in Sao Miguel, Azores, offering a diverse topography that includes a wall, a reef, and a wreck. Divers can explore these features at depths reaching 21 metres. Visibility is high, ranging from 20 to 40 metres. Conditions are variable, with currents that can shift quickly, requiring strong buoyancy control and situational awareness. Due to the presence of a wreck, there is a risk of entanglement. Water temperatures fluctuate between 17C and 24C throughout the year. Species recorded around this area include various wrasses, moray eels, groupers, and seahorses. This site is suitable for intermediate divers.

O Arco is a reef and cave site located 300 metres off the coast of Sao Miguel, Azores. The site features depths ranging from 5 to 24 metres, with an average depth of 15 metres. Divers encounter mild currents and visibility between 10 and 30 metres. The primary feature is a cave that creates an overhead environment, requiring solid buoyancy control. This site is suitable for beginners and is accessible year-round by boat. It is also well-suited for night dives. Species recorded around this area include seahorses, dusky groupers, great barracuda, Mediterranean moray, common octopus, Turkish wrasse, European parrotfish, pufferfish, black moray, scorpionfish, slipper lobster, and cow snails.

Arco do Cavaco is a wall and drift dive located 500 metres off the coast of Sao Miguel in the Azores. The site features a wall that reaches depths of 15 to 18 metres, with some areas extending to 33 metres. Divers experience moderate currents, making this an intermediate-level site where drift diving is the primary method. Visibility typically ranges from 10 to 30 metres. Access is strictly by boat, and divers should coordinate closely with the skipper to manage drift patterns and surface boat traffic. Water temperatures fluctuate between 17C and 24C throughout the year.

Willy Wonka is a volcanic reef located 500 metres off the coast of Sao Miguel, Azores. The site features a mix of rock bottom and volcanic reef structures, including arches. Divers can expect depths ranging from 7 to 19 metres, with an average depth of 13 metres. Access is by boat only, and the site is suitable for beginners. Conditions are generally mild, with visibility ranging from 15 to 40 metres and water temperatures between 17C and 24C. Species recorded around this area include seahorses, common octopus, great barracuda, Mediterranean moray, dusky grouper, European parrotfish, various wrasses, black moray, pufferfish, grey triggerfish, giant doris, and slipper lobster. Be aware of boat traffic in the area.

The DORI Liberty Ship Wreck is a protected Marine Cultural Reserve located 800 metres off the coast of Sao Miguel. This artificial reef rests on a sand bottom at depths ranging from 5 to 22 metres, with an average depth of 15 metres. The site is accessible by boat and is suitable for beginners. Divers and snorkellers should be aware of boat traffic, depth, and potential entanglement hazards. The water temperature fluctuates between 17C and 24C throughout the year. Night diving is permitted at this location.