Tourism context for Proti Island diving excursions and the Blue Hole stalactite cave.
Boat-only Proti Island tunnel dive with cove entry and a sheltered wall.
Boat-only Proti Island tunnel dive with cove entry and a sheltered wall.
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Typically handled as a guided boat dive from Marathopoli or Proti Island operators.
Blue Hole on Proti Island is a boat-only tunnel-and-wall dive on the island's west side, where a small cove leads into a cavern and then out into a sheltered bay. The site is known for dramatic rocky topography, a photogenic stalactite room, and a straightforward profile that still rewards good buoyancy and a relaxed pace. Divers can expect a scenic, terrain-led dive with mild current, not a heavy-current chase or a big-reef fish show.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
7.5m - 40m
Depth Note
The tunnel entrance begins around 7 to 7.5 m, with surrounding walls descending beyond 30 m and a listed max depth of 40 m.
Best Season
Autumn and summer are the listed best seasons, with morning dives preferred when the sea is calmer.
Typical Conditions
Boat-only cave-and-wall dive with a small cove entry, mild current, and an overhead passage that rewards slow, controlled movement.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Enter one diver at a time, keep buoyancy tight in the tunnel, and watch head clearance around the stalactites.
Access Restrictions
Boat access only; morning dives are preferred because wind and swell can build later in the day.
Legal Notes
Boat-only access and tunnel transit should follow local operator guidance and weather limits.
Community notes to help plan your visit.
Scuba Diving
Wall dive to about 30 m and described as suitable for all certification levels.
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
Tourism context for Proti Island diving excursions and the Blue Hole stalactite cave.
Boat entry, tunnel depth, wall depth, current, visibility, marine life, and seasonal context.
Blue Hole route through a small cove, cavern, stalactite room, and wall to 30 m.
Small-cove entry, stalactite room, easy dive profile, and 30 m wall extension.
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