Two caverns found by the dive centre's own team while looking for new sites, and shallow enough that the operator opens them to entry-level divers. One is a lit tunnel with windows to the outside; the other has an entrance at 6 metres and penetrates to 15. The dive centre keeps the location to itself, so no position is published.
Where it is and how deep
No published position for this site — the map shows Alonissos & the Peristera Wreck and its other sites; operators know the mooring.
The dive
There are two distinct caverns here, both found by the dive centre's team while they were out searching for new sites. The first is a passage with ample lighting: it has windows to the outside cut into it, so colour holds inside rather than draining away, and the tunnel reads as a lit corridor rather than a dark overhead.
The second cavern has an entrance at 6 metres and penetrates to 15. From there you follow the coastline round, along walls and through boulder fields, and into a large cavern at the end of the dive. The whole area of interest sits between 5 and 18 metres with 30 metres as the maximum, which is why the operator opens the site to Open Water divers - the interest is in the topography and the light, not in depth.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Off-season | Off-season | Off-season | Fair | Good | Prime | Prime | Prime | Prime | Good | Off-season | Off-season |
Season follows Alonissos & the Peristera Wreck: The underwater museum and most operators run May–Oct only; meltemi winds can close the exposed Peristera site in midsummer.
Know before you go
- The second cavern penetrates to 15 m from a 6 m entrance - a real overhead, so carry a light, keep the guide's order and stay inside your training.
Questions divers ask
Where exactly are the Triton Caverns?+
The dive centre whose team found and named the caverns keeps the location to itself, so no position is published and the marker here is the area rather than a fix. The site is dived with the operator, and the caverns sit between 5 and 18 metres.
Sources
- Triton Caverns — Alonissos Triton Dive Center
- Alonissos Triton Dive Center dive sites — Scubaverse
More dive sites in Alonissos & the Peristera Wreck
Wall from 8 m to 30 m, with rock running on to 50 m
The shallow half of the cove, with its best rock at 8 to 20 m
Reef
One of the area's dive highlights, and an ideal night dive
Wall to 20 metres, then into the most famous cave on Alonissos
Cave & cavern
A 70 m cave passage with its mouth between 22 and 34 m
A sharp drop to 50 m with openings and cracks in the face
A boulder-strewn plain further offshore than the West side
Often ends in a small cave full of young fish
Similar dives elsewhere
The Shrimp Hole cavern at 24 m and a cave that holds 10 divers
A 50 m training cavern at 17 m, 15 minutes from Moraira port
Shafts of light turning the cave chambers an intense blue
.jpg){kind=link}
An air dome at the end of the first cave