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.

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.

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.

Punta Coticcio is a wall dive located within the La Maddalena Archipelago National Park. The topography is defined by large boulders that create crevices and sheltered areas. Divers can explore depths ranging from 5 to 40 metres, with an average depth of 30 metres. Access to this site is by boat only, situated approximately 8 kilometres from the shore. Conditions are generally suitable for intermediate divers, with mild currents and visibility ranging between 15 and 40 metres. Water temperatures fluctuate between 14C and 18C throughout the year. Due to the nature of the site, divers should remain aware of boat traffic and depth management.

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.

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 Francese is a historic granite quarry site located on the island of La Maddalena. The topography consists of a rocky coastline and deep inlets, offering a mix of natural reef and artificial structures. Divers and snorkellers can explore depths starting from 2 metres, with visibility ranging between 5 and 20 metres. The site is accessible from the shore and is suitable for beginners, though the presence of deep areas requires caution. Conditions are generally mild, with water temperatures fluctuating between 14C in the winter and 26C during the peak of summer. Guided tours are available for those wishing to explore the underwater terrain of this unique coastal environment.