3 Houses is a reef site located off Sao Miguel in the Azores, accessible only by boat. The topography features depths ranging from the shallows down to 22 metres. While the current is generally mild, divers should be aware of the potential for stronger surges. Water temperatures fluctuate between 17C and 24C throughout the year, and visibility is known to be variable. Due to these changing conditions and the presence of sharks, beginners are advised to dive with a local guide who is familiar with the site. This location is suitable for Open Water certified divers.

Baixa das Castanhetas features diverse underwater topography including a reef, canyon, cave systems, and a drop-off ranging from 12 to 45 metres. Located 500 metres from shore, this site requires boat access. Divers experience moderate currents and visibility typically between 10 and 25 metres. Water temperatures fluctuate between 17C and 21C throughout the year. Due to the presence of caves and deep sections, this site is classified as an intermediate dive requiring solid buoyancy control and careful gas planning for overhead environments. Night diving is possible at this location.

Panela is a reef site featuring caves and caverns located 100 metres from the shore of Sao Miguel. The site offers a comfortable depth range of 10 to 18 metres, with an average of 15 metres, making it suitable for beginners. Visibility typically spans 10 to 30 metres. While currents are generally mild, the site is prone to surge and swell, particularly near cavern entrances. Divers can access the site by boat or from the shore, and night diving is permitted. Water temperatures fluctuate between 17 and 24 degrees Celsius throughout the year. Local boat charters are available to assist with site access and monitoring conditions.

Caloura Panela is a varied reef system located 100 metres from the shore of Sao Miguel. The site features cave structures and reaches depths between 5 and 17 metres, with an average depth of 10 metres. Suitable for beginners, the site offers both shore and boat entry options. Divers can expect mild currents and visibility ranging from 10 to 30 metres. The location is accessible year-round and supports night diving. On-site facilities include parking, toilets, showers, a cafe, and a dive shop. Due to the presence of sharp rocks and coral, protective footwear such as booties is recommended for shore entries.

Ponta da Galera offers a varied underwater landscape off Sao Miguel, combining reef, wall, and cave topography. Divers can explore depths ranging from 14 to 40 metres, with an average depth of 20 metres. The site is accessible by boat only and is suited for intermediate divers due to moderate currents and the presence of overhead environments within the cave sections. Visibility is highly variable, ranging from 5 to 40 metres, while water temperatures fluctuate between 17C and 22C throughout the year. Divers should be prepared for changing current conditions and carry appropriate lighting for cave exploration.

Caloura Arches in Sao Miguel features volcanic rock formations and underwater arches. The site is suitable for beginners, with depths ranging from 5 to 20 metres and an average depth of 12 metres. Access is by boat, located 300 metres from the shore. Conditions include mild currents and visibility that varies between 5 and 30 metres. The site is suitable for both diving and snorkelling, with night diving also available. Facilities at the location include parking, toilets, showers, a cafe, and a dive shop. Divers should be aware of the potential for low visibility.

Arcos da Caloura is a reef dive located on Sao Miguel, offering a manageable experience for beginner divers. The site features depths between 15 and 18 metres with visibility ranging from 10 to 30 metres. Divers can access the reef via shore or boat, with mild currents typically present. Water temperatures fluctuate between 17 and 24 degrees Celsius throughout the year, requiring a 3 mm to 5 mm wetsuit depending on the season. When diving here, remain aware of boat traffic when surfacing and exercise caution to avoid contact with rocks during entry and exit.

Baixa do Ouro is a reef located 1000 metres offshore from Sao Miguel in the Azores. The site features a reef structure extending from 5 metres down to 25 metres, offering a range of depths for both divers and snorkellers. Access is by boat only, and visitors should be prepared for moderate currents that can strengthen. Due to the potential for boat traffic and changing conditions, careful monitoring of depth and current strength is required. Species recorded around this area include wrasses, European parrotfish, dusky grouper, and various moray eels. Water temperatures range from 17C to 23C throughout the year.