Kos Diving Guide | DiveJourney | Kos is a land-based Aegean dive and snorkel island rather than a liveaboard destination. The best underwater days run from May to October, when local boats work | Kos
A wall-and-plateau dive off northeastern Pserimos Island with a notable cave and
A wall-and-plateau dive off northeastern Pserimos Island with a notable cave and
Kos-based boat operators are the normal way to reach the site.
Cave Island is a dive site off the northeastern side of Pserimos Island and is known for its dramatic wall and cave feature. Divers typically follow the drop-off down the wall and then explore the plateau area. A large cave entrance is a defining landmark of the site. Expect chances to see schooling barracuda along the wall, with sea bream and red sea stars reported on the plateau.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
8m - 50m
Depth Note
The cave sits around 8 m and the first drop-off reaches about 50 m.
Best Season
June to September
Typical Conditions
Boat circuit around Pserimos with a cave, sand patch, and rock walls in clear island water.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Treat the cave as an overhead area and plan the deep drop-off conservatively.
Access Restrictions
Best for experienced scuba divers and advanced freedivers comfortable with boat access, cave terrain, and depth changes.
Legal Notes
Do not disturb the cave walls or marine life; follow the boat route and briefing.
Community notes to help plan your visit.
Scuba Diving
This is a scuba-first boat dive with a cave, a sand patch, rock walls, and a deep outer drop-off.
Freediving
Advanced freedivers may only use the shallower cave and wall sections.
Snorkeling
Not a useful snorkel site because the main features sit too deep.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Kos Diving Guide | DiveJourney | Kos is a land-based Aegean dive and snorkel island rather than a liveaboard destination. The best underwater days run from May to October, when local boats work | Kos
Liamis Dive Centre – Kos, Greece | Diving Excursions around Kos, Greece
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