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.

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.

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.

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.

The Dori is a wreck site serving as an artificial reef off Sao Miguel, Azores. Resting at depths between 9 and 20 metres, it is suitable for beginner divers. The site is accessible by both boat and shore, located 800 metres from the coast. Divers experience mild currents and visibility ranging from 10 to 40 metres. Water temperatures fluctuate between 17C and 24C throughout the year. Night diving is permitted, offering a different perspective of the wreck structure. Shore entries require caution due to surf and breaking waves, and protective footwear is recommended to navigate the shallow rocky areas.

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.

Ilhéu de Vila Franca do Campo is a reef site located 5000 metres from the shore of Sao Miguel in the Azores. This boat-accessible site features an average depth of 11 metres. Divers should be prepared for moderate currents and visibility ranging from 15 to 40 metres. The water temperature fluctuates between 17C and 24C throughout the year. Due to the potential for deep water and strong currents, this site requires careful planning. Typical dives at this location last approximately 45 minutes. It is suitable for beginners, though the environmental conditions vary.

Âncoras do Ilhéu is a distinctive dive site located 50 metres off the coast of Sao Miguel, Azores. The site is defined by an artificial reef composed of approximately 22 historic anchors, some reaching over 3 metres in height, which rest alongside natural reef formations. Divers typically explore at depths between 14 and 22 metres, with an average depth of 16 metres. The site is accessible by boat and is suitable for beginners, though divers should be aware of potential strong currents. Visibility ranges from 12 to 30 metres. Species recorded around this area include seahorses, common octopus, dusky grouper, black moray, and European parrotfish.