Cala Achiarina is a reef and seagrass site located on the west coast of the main island in the Lavezzi Islands. This shallow location features an average depth of 3 metres, ranging between 2 and 4 metres, making it suitable for beginners. Divers and snorkellers access the site directly from the shore, with the main area situated 15 metres from the beach. Conditions are generally mild with visibility ranging from 5 to 25 metres. Water temperatures fluctuate seasonally from 14C in winter to 26C in August. Divers should be aware of the presence of jellyfish in the area.

Cala Di U Grecu is a sheltered reef site located on the east coast of the Lavezzi Islands. This site consists of two small bays situated near the eastern jetty, offering a shallow environment ranging from 1 to 6 metres in depth. Accessible directly from the shore, the area features mild currents, making it suitable for beginners. Snorkellers should remain aware of potential boat traffic in the vicinity and the presence of jellyfish. As part of a long-standing marine preserve, the site provides a protected environment for observing the local marine habitat.

Cala Della Chiesa is a snorkel site located on the north coast of the Lavezzi Islands, featuring a topography of granite blocks and white sand. The site consists of reef and seagrass habitats at depths ranging from 1 to 12 metres, with an average depth of 3 metres. Snorkellers can observe various species including wrasses, bream, white seabream, two-banded seabream, painted comber, wide-eyed flounder, striped red mullet, tompot blenny, mauve stinger, castagnole, salema porgy, snails, and triplefin. Access is by boat, and the site is suitable for beginners. Conditions include mild currents and visibility between 5 and 20 metres. Be aware of potential hazards including boat traffic, jellyfish, and strong currents.

Mérouville is a marine dive site located within the Lavezzi Islands, France. The site features a depth range typically between 11 and 15 metres. Conditions at this location vary throughout the year, with water temperatures ranging from 14C in the late winter and early spring to 24C during the peak of summer in August. The site is accessible for diving activities, with records of dives spanning from 2000 to 2013. Divers should be prepared for variable conditions typical of the region when planning their visit to this Corsican site.

Città delle Cernie is a wall and reef system located in the Lavezzi Islands, France. The site features a depth range of 16 to 35 metres, with an average depth of 25 metres. Divers experience consistent visibility of 30 metres. Access is by boat only, and the site is suited for advanced divers due to moderate to strong currents. Water temperatures range from 14 to 19 degrees Celsius throughout the year. Divers should monitor their depth and remain close to the boat entry point, as currents can be unpredictable. The topography consists of a wall and reef structure that requires careful navigation.

Mérouville is a marine dive site located in the Lavezzi Islands, France, featuring a combination of reef, wall, and artificial reef topography. The site is accessible only by boat. Divers can expect depths ranging from 17 to 36 metres, with an average depth of 27 metres. Conditions vary, and the site is suited for intermediate divers due to the depth profile. Water temperatures fluctuate throughout the year, ranging from 14C in the winter months to 22C in August. As a boat-based dive, it requires appropriate planning for offshore conditions.

Relitto Angelika is a wreck site located 1000 metres offshore in the La Maddalena Archipelago, Italy. The wreck lies at depths between 5 and 25 metres, with an average depth of 15 metres. Access is by boat only. Divers encounter mild currents and visibility ranging from 10 to 30 metres. The site presents an overhead environment, requiring appropriate buoyancy control and training for those entering confined areas. A sharp thermocline is common during descent, with water temperatures varying from 14C to 23C. Species recorded around this area include various wrasses, seabream, and Mediterranean moray. This site is suitable for intermediate divers, with typical dives lasting 45 minutes.

Cala Lunga is a narrow, deep inlet situated on the uninhabited island of Razzoli within the La Maddalena Archipelago. This rocky reef site is accessible only by boat and features depths ranging from 2 to 4 metres. Divers and snorkellers experience a rugged, remote environment with visibility fluctuating between 5 and 25 metres. Conditions include mild currents and potential surge, requiring intermediate skill levels. Due to the nature of the location, visitors must remain aware of boat traffic in the area. The water temperature varies significantly throughout the year, ranging from 14C in late winter to 26C in August.