Cala Coticcio is a reef site within the La Maddalena Archipelago, characterised by a shallow, pool-like environment. Depths range from 1 to 10 metres, with an average of 5 metres, making it an excellent location for snorkelling. Visibility typically spans 15 to 25 metres. The site is suitable for intermediate divers and can be accessed by boat or from the shore. Water temperatures fluctuate significantly throughout the year, reaching 25°C in August and dropping to 14°C in early spring, which necessitates a full wetsuit. Species recorded around this area include wrasses, bream, cuttlefish, and various sea stars.

Tahiti is a cave dive site located in the La Maddalena Archipelago, Italy. The site features a cave system ranging from 5 to 35 metres in depth. While the shallower sections are suitable for beginners, the deeper areas require more experience. Access is by boat only, and divers must be prepared for moderate currents and variable visibility. Water temperatures range from 14 to 19 degrees Celsius, necessitating appropriate thermal protection. Due to active boat traffic overhead, divers should surface near their vessel and use a surface marker buoy. Species recorded around this area include wrasses, bream, cuttlefish, sea stars, and various blennies.

Grottino di San Francesco in the La Maddalena Archipelago is a reef and cave site accessible by boat. The topography features a cavern that transitions from 12 metres up to 5 metres, while the surrounding reef reaches depths of 35 metres with an average of 18 metres. Divers experience mild currents and visibility ranging from 15 to 30 metres. The site is suitable for beginners, though the cavern presents an overhead environment. Species recorded around this area include wrasses, bream, two-banded seabream, painted comber, and various invertebrates such as sea stars and crabs. Typical dives last 45 minutes, with air fills, equipment rental, and guided tours available locally.

Secca dei Monaci is a pinnacle and reef site located 1852 metres offshore in the La Maddalena Archipelago. This drift dive is suitable for advanced divers due to the strong currents and depths ranging from 8 to 40 metres, with an average depth of 20 metres. Visibility is consistently 30 metres. Access is by boat only, and dives typically last 35 minutes. The site features gorgonians and dynamic underwater topography. Given the deep water and strong currents, this site requires careful planning and experience. Guided tours are available through local dive shops.

Cala Napoletana is a sheltered cove located on the northern tip of Caprera in the La Maddalena Archipelago. The site features rocky sides that provide protection for the local marine environment. Snorkellers can access the water from both the shore and by boat. Water temperatures fluctuate throughout the year, ranging from 14C in the winter months to 26C in August. Species recorded around this area include various wrasses, bream, scorpionfish, and European common cuttlefish, alongside invertebrates such as sea stars, sea hares, and crabs. Due to the nature of the terrain and conditions, this site is best suited for intermediate-level snorkellers.

Galera in the La Maddalena Archipelago offers a combination of wreck and reef topography for intermediate divers. The wreck lies at depths between 18 and 25 metres, with an average depth of 20 metres. Visibility at the site ranges from 10 to 30 metres. Access is by boat only, and divers should exercise caution regarding buoyancy to avoid contact with sharp coral, rocks, and sea urchins present on the seabed. Water temperatures fluctuate between 14C and 22C throughout the year, necessitating appropriate thermal protection. Species recorded around this area include wrasses, bream, scorpionfish, and various crustaceans.

Spalmatore is a sheltered reef site in the La Maddalena Archipelago, suitable for beginners due to the lack of current. The site features a combination of natural reef and artificial reef structures, offering varied topography between 5 and 15 metres depth. Visibility typically ranges from 15 to 30 metres, allowing for clear observation of the layout. Divers can access the site from the shore or by boat. Facilities include parking, changing rooms, equipment rental, and a cafe. Water temperatures fluctuate between 14C and 24C throughout the year. Divers should exercise caution regarding sea urchins on the rocky bottom, particularly when entering from the shore.

Cala dell'Oro is a reef dive located in the La Maddalena Archipelago, Italy. The site features a reef structure that drops from 18 to 28 metres. Access is by boat only, and the site is suitable for intermediate divers due to the depth range. Conditions include mild currents and visibility ranging from 10 to 30 metres. Water temperatures fluctuate between 14 and 20 degrees Celsius throughout the year, necessitating appropriate thermal protection. Night diving is permitted at this location. Divers should exercise caution regarding buoyancy to avoid contact with sea urchins and sharp coral present on the reef.