While you can dive all year round in Sardinia, many dive centres are closed during the winter months between November and April. In the summer months, the sea temperatures remain consistent between 19 and 25 Degrees Celsius, making Sardinia one of the best diving destinations in the Meditteranean. With a number of wrecks dotted around the island, and a vast array of caves and grottos just waiting to be explored, Sardinia is home to morays, lobsters, conger eels, stone fish, barracudas, octopus, crabs, lots of nudibranches and large schools of groupers.  

The area features pristine waters and amazing visibility and interesting swim throughs with enormous granite rocks, wrecks, caves, overhangds and densely populated drop offs however, sightings of large species are limited. The dive centres which operate from the northern tip of Sardinia take divers out on excursions along the coast and to the Maddalena Archipelago National Park which is one of the Meditteranean's best marine reserves and features some of the best dive sites in the world. The wide shallow areas between the islands are no deeper than 70 metres and make Sardinia particularly great for macro photography and sightings of crustaceans and beautiful corals and sponges.

More than 40 dive sites, consisting of sheltered islands and islets, can be visited around the coast of northern Sardinia and the Maddalena Archipelago National Park and the Lavezzi Marine Reserve which is nestled between Corsica and Sardinia and is known for its huge blocks of granite.