Sardinia's marine protected areas have exceptional diving with outstanding visibility (often 25–30m). Key sites include the Villasimius and Capo Carbonara MPA (sea turtles, grouper, wreck of the Romagna), the Alghero coral reef, and the Cala Gonone caves. The Italian navy scuttled several ships around Sardinia creating excellent wreck diving.
Scuba diving around Sardinia is concentrated in the island's marine protected areas, where clear water and well-managed reefs produce some of the Mediterranean's finest diving. Principal centres include Villasimius and the Capo Carbonara MPA in the south-east, the waters off Cagliari, the coral-rich coast near Alghero in the north-west, and the cave-lined cliffs around Cala Gonone on the Gulf of Orosei. Visibility is frequently 25 to 30 metres, and divers encounter sea turtles, grouper, moray eels, octopus, seahorses and extensive Posidonia seagrass meadows, while several scuttled vessels and historic wrecks add interest for more experienced divers. Sites suit a wide range of abilities: certified divers holding PADI Open Water or an equivalent qualification can join standard two-dive outings, while complete beginners can try a supervised Discover Scuba experience in shallow, sheltered water. A basic level of health and comfort in the water is required, the minimum age is usually 10 for junior programmes and 8 for pool-based bubble-maker sessions, and divers should not fly within the recommended interval after their last dive. Dive centres supply tanks, weights and, on request, full equipment hire, so visitors need bring only swimwear, though many prefer their own mask and computer. Operators in the coastal resorts are typically PADI, SSI or CMAS affiliated and run boats with oxygen and first-aid aboard; every outing begins with a briefing on the dive plan, hand signals, no-decompression limits and the emergency procedure, and protected-area rules prohibit touching or removing marine life. In an emergency, centres coordinate with the Italian Coast Guard (1530) and the nearest hyperbaric chamber. The diving season runs roughly April to November, with the warmest water and best conditions from June to September; spring and autumn offer fewer crowds and good visibility, while strong Mistral winds can cancel boat dives at exposed sites, so flexible scheduling helps. Booking a day or two ahead is usually sufficient outside the busy August peak.
Activity facts
- Where
- Villasimius, Cagliari, Alghero, Cala Gonone
- Duration
- Half day (2 dives)
Highlights
- Sea turtles at Villasimius MPA
- WWII shipwrecks around the island
- Neptune's Grotto sea approach by dive
- Posidonia seagrass meadows
- Moray eels, grouper, octopus, and seahorses
Tips for visiting
- Hold a PADI Open Water card or equivalent for standard dives; absolute beginners should book a guided Discover Scuba session instead.
- Dive June-September for the warmest water, or spring and autumn for good visibility with fewer divers.
- Keep scheduling flexible: strong Mistral winds can cancel boat dives at exposed sites at short notice.
- Centres provide tanks and weights and hire full kit, but bringing your own mask and dive computer adds comfort.
- Respect marine-park rules: do not touch, feed or remove any marine life within the protected areas.
- Leave the recommended no-fly interval after your final dive before catching a flight home.
Frequently asked questions
Do I need a diving certification?
For standard two-dive outings yes, normally PADI Open Water or equivalent. Beginners without certification can join a supervised Discover Scuba dive in shallow, sheltered water.
What might I see underwater?
Sardinia's protected areas host sea turtles, grouper, moray eels, octopus, seahorses and Posidonia seagrass meadows, with several wrecks for more experienced divers, often in 25 to 30 metre visibility.
When is the diving season?
Roughly April to November, with the warmest water from June to September. Spring and autumn bring fewer crowds and good visibility, though Mistral winds can cancel exposed dives.
Is equipment included?
Dive centres supply tanks and weights and can hire full equipment, so visitors need only swimwear, though many bring their own mask and dive computer.