Sardinia dive sites
Italy · Browse dive locations by depth, type and conditions.
Best Season
May-October
Skill Levels
advanced
Nearby Cities
Alghero
All dive sites
Dive centers in Sardinia
Capo Galera Diving
Alghero · Sardinia · Italy
Alghero dive center exploring Capo Caccia caves, red coral, and Sardinia's northwest coast.
Sardinia Divers
Alghero · Sardinia · Italy
Alghero dive centre exploring Sardinia's Capo Caccia marine reserve — Neptune's Grotto and spectacular caves.
Area Mare Diving
Cala Gonone · Sardinia · Italy
Cala Gonone dive center exploring the Gulf of Orosei with cliffs, caves, and blue holes.
Nautilus Diving Center
Palau · Sardinia · Italy
Palau dive center for Maddalena Archipelago National Park diving in northeast Sardinia.
SubAquaDive Service
Villasimius · Sardinia · Italy
Villasimius dive center in Capo Carbonara Marine Protected Area, southeast Sardinia.
Nautilus Diving Center
14 · Sardinia · Italy
Scuba Revolution Sardinia
20 · Sardinia · Italy
Archeo diving
Via Degli Oleandri · Sardinia · Italy
Poseidon Diving Center-SSI-Diving & Snorkeling
79 · Sardinia · Italy
Bluforia Diving Center
4/A · Sardinia · Italy
Blu dive Center
07028 Santa Teresa Gallura OT · Sardinia · Italy
Discovery Diving Sardegna
07052 San Teodoro OT · Sardinia · Italy
DST Sardegna - Diving & Snorkeling Team
Spiaggia Sos Aranzos · Sardinia · Italy
Kairos Diving Center - Sardegna
07026 Porto Rotondo OT · Sardinia · Italy
Scuba Point
07020 Palau OT · Sardinia · Italy
Orosei Diving Center
08028 Orosei NU · Sardinia · Italy
Anthias Diving Center
Km 3 · Sardinia · Italy
AQUARIUS Dive Center
2 · Sardinia · Italy
BLU INFINITO Diving Center
Porto Coda Cavallo · Sardinia · Italy
Bosa Diving Center
09089 Bosa Marina OR · Sardinia · Italy
Argonauta Diving Sardinia
4 · Sardinia · Italy
Sandalia Diving Center & Snorkeling
07041 Alghero SS · Sardinia · Italy
Italian Divers Sardegna
88 · Sardinia · Italy
Orso Diving Club - Whale Watching Sardinia
lato ovest porto · Sardinia · Italy
Diving in Sardinia
Sardinia offers cave dive sites across 1 location. Browse dive locations by depth, type and conditions before planning your dive.
FAQ
What certification do I need to dive Nereo Cave?
The cave has multiple entrances at different depths and some areas are accessible to Advanced Open Water divers staying in the shallower sections between 15 and 20 metres. However, a full exploration requires cave or cavern diving certification, as the 300-metre main tunnel and deeper passages reach 35 metres with areas far from natural light. All divers must be accompanied by a certified guide from a local dive centre.
When is the best time to dive Nereo Cave in Sardinia?
The best conditions are from May to October when water temperatures range from 18 to 26 degrees Celsius and sea conditions are calmest. Summer months offer the warmest water and most reliable boat access to Capo Caccia. Visibility outside the cave regularly exceeds 25 metres, while inside the cave visibility depends on diver technique and silt management.
What makes Nereo Cave the largest marine cave in the Mediterranean?
Nereo Cave extends over 500 metres in total length beneath the limestone promontory of Capo Caccia, with a 300-metre main tunnel and multiple secondary chambers. It has approximately ten entrances, arches, and tunnels at various depths between the surface and 35 metres. The cave includes air chambers where divers can surface and see stalactites from the cave's formation when it was above sea level.