Dive-site story
Located within the Tremiti Islands Marine Protected Area off the coast of San Domino, Il Grottone is characterized by extensive limestone cavern formations and wide arches. Sunlight filters through overhead fissures, illuminating vaulted chambers lined with encrusting sponges and bryozoans. Divers navigate through spacious passageways before emerging onto sloping rocky reefs inhabited by Mediterranean fauna.
Expansive limestone cavern chambers with natural skylights
Walls covered in colorful sponges, sea squirts, and yellow cluster anemones
Rocky crevices hiding octopuses and moray eels
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Calm seas and warm water make the summer and early autumn months optimal for diving in the Tremiti archipelago.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dusky GrouperEpinephelus marginatus | Common | ||||||||||||
| Mediterranean MorayMuraena helena | Common | ||||||||||||
| Common OctopusOctopus vulgaris | Common | ||||||||||||
| Yellow Cluster AnemoneParazoanthus axinellae | Common | ||||||||||||
| Spotted FlabellinaFlabellina affinis | Common |
Marine forecast
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