Atlantis Palace in Porto Novo offers a combination of reef and cave diving at depths between 8 and 20 metres. Located 3000 metres from shore, this site requires boat access and is suited for intermediate divers. Visibility ranges from 15 to 70 metres, providing clear views of the underwater structures. While currents are typically mild, they can strengthen, and divers should be aware of sharks in the area. Full exposure suits are recommended to protect against jellyfish stings, and caution is advised regarding lionfish. Guided tours and night diving are available through the on-site dive shop, with typical dives lasting 50 minutes.

Ilhéu do Boi is a small islet located off Porto Novo, Cape Verde, offering a diverse underwater landscape of walls, pinnacles, and reefs. Divers can explore depths reaching 28 metres. Access is strictly by boat to avoid the surf and shore break at the water edge. Conditions are variable, with strong currents that require divers to be comfortable adjusting their plans. The site features sharp volcanic rock, making gloves advisable for protection. Water temperatures fluctuate between 22 and 27 degrees Celsius throughout the year. This site is best suited for intermediate divers capable of managing moving water and navigating complex structures.

Baixa do Boi is a reef dive located off Porto Novo, Santo Antao, Cape Verde. The site features a reef structure that slopes from the shallows down to a maximum depth of 40 metres. Divers experience moderate currents and visibility ranging between 15 and 30 metres. Due to the significant depth and current, this site is suitable for intermediate divers with an Advanced Open Water certification or equivalent. Access is by boat only, as the site is situated approximately 1852 metres from the shore. Water temperatures remain between 22 and 25 degrees Celsius. Divers should be aware of potential hazards including deep water, sharp rocks, sea urchins, and stonefish.

Christine Plateaux is a shallow reef dive located off Porto Novo, Santo Antao. The site features a drift profile with depths ranging from 10 to 14 metres, averaging 10 metres. Divers experience visibility between 15 and 30 metres. Access is exclusively by boat, and the site is suitable for beginner divers. While currents are generally mild, they can strengthen, requiring careful monitoring of conditions before entry. Water temperatures fluctuate between 22 and 27 degrees Celsius throughout the year. Divers should remain aware of boat traffic and potential entanglement hazards while maintaining a tight group during the drift.

Hanging Garden is a vertical wall and drop-off site in Porto Novo, Cape Verde. The topography begins at a shallow reef crest at 5 metres and descends to 35 metres. Divers experience moderate currents and visibility ranging from 17 to 40 metres. Due to the significant depth and potential for sharks, this site is suited for advanced divers. Boat access is required to reach the location, and night diving is available. Species recorded around this area include Turkish Wrasse, Round Fantail Stingray, Arrow Crab, and Trumpetfish. Divers should monitor their depth closely along the wall and remain aware of boat traffic while submerged.

Secret Garden is a reef site located off Porto Novo, Cape Verde, featuring a mix of rock and coral formations. The site is suitable for intermediate divers, with depths ranging from 15 to 30 metres and an average depth of 15 metres. Divers can expect mild currents and visibility between 15 and 30 metres. Access to the site is by boat only. Due to the presence of sharp coral and rock edges, divers should maintain good buoyancy control and consider wearing gloves. Divers must remain close to the boat and their group at all times, as conditions can shift to drift diving.

Ponta do Pesqueiro Preto is a reef dive located off Porto Novo, Santo Antao, Cape Verde. The site features a reef structure that allows for exploration at depths between 5 and 16 metres. Visibility at this location ranges from 15 to 30 metres, with water temperatures varying from 22 to 27 degrees Celsius throughout the year. Access to the site is by boat only. While currents are generally mild, the area can experience pockets of stronger flow and surface surf. Guided tours, equipment rental, and air fills are available to support divers. Beginners should follow guide instructions closely, particularly during boat entry and descent, to manage surface conditions effectively.

Ponta do Tubarão is a reef and drift dive site located off Porto Novo, Cape Verde. The site features a reef structure with depths ranging from 6 to 23 metres, averaging 12 metres. Divers should expect moderate currents, which can strengthen, requiring careful monitoring and pre-dive briefings. Water temperatures fluctuate between 22 and 27 degrees Celsius throughout the year. Visibility is variable, and divers must maintain good buoyancy control and remain aware of their surroundings, particularly near the surface due to potential boat traffic. This site is accessible by boat and is suitable for beginner divers, though local conditions should be checked prior to departure.