Il Grottone
Conditions
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
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About this site
Il Grottone is a large underwater cavity that opens at the base of the limestone cliff on the south-east side of Tavolara island, Sardinia. The cave formed naturally within the majestic limestone escarpment and its entrance and outer walls are coated in green sciaphilous algae and encrusting red algae.
Inside the cave, where natural light does not penetrate, every surface is densely covered by sponges, bryozoans and coelenterates, producing a rich variety of colours that a torch is needed to appreciate fully. A good buoyancy technique and a dive light are essential for exploring the interior safely.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Yellow Cluster AnemoneParazoanthus axinellaeReported here · unconfirmed
European Spiny LobsterPalinurus elephasReported here · unconfirmed
Sunset Cup CoralLeptopsammia pruvotiReported here · unconfirmed
Violescent Sea-whipParamuricea clavataReported here · unconfirmed
Cushion CoralCladocora caespitosaReported here · unconfirmed
Pig-tooth CoralBalanophyllia (Balanophyllia) europaeaReported here · unconfirmed
Mediterranean MorayMuraena helenaObserved near here · iNaturalist
Leopard Sea SlugPeltodoris atromaculataObserved near here · iNaturalist
Cratena SlugCratena peregrinaObserved near here · iNaturalist
Mediterranean DamselfishChromis chromisObserved near here · iNaturalist
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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