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Peristera cave (Methana)

Greece

Peristera cave (Methana)

  • CertificationFull cave
  • SpecialSidemount

Diving and fills

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What it looks like

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Videos and posts

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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.

The dive

Coastal cave with three chambers: the first and third partly or fully flooded, the middle one full of large boulders.

Unstable boulders at the entrance: risk of rockfall and landslides after rain, slippery rocks.
Profile and sections

Coastal cave with three chambers: the first and third partly or fully flooded, the middle one full of large boulders. There are several haloclines (beautiful, but poor visibility); the surface water is colder than half a metre deeper. The sediment is fine and yellow-orange. A large bat colony lives in the second chamber: do not disturb it.

The cave was discovered around 1973 during road construction, first explored in 1974 and dived in September 2020.

Depth and profile
Cave ~240–250 m long, ~4,000 m²; at most points no deeper than 2 m. Two underwater tunnels left and right in the first chamber; in the third chamber a small underwater chamber with stalagmites. Depth and length of the tunnels are not published.
Configuration
Shallow, with gear hauling over boulders: light sidemount kit makes most sense.
DPV: Not DPV-suitable (estimate)
Shallow and full of boulders: no scooter.
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveExperienced divers only · doesn't decide who may dive
Dry sections / haulingExperienced divers

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

By land: signposted from the Steno–Vathi road on Methana, ~1.9 km after the junction, just past the fish farms. Steep ~30 m climb over loose boulders to the entrance (32 m wide, ~10 m high), then a ~20 m descent to the water.

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Sources, sharing and disclaimer

Sources

Current conditions

Visibility, flow and water levels change quickly. Right before your dive, check what other divers report:

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (cave pages of the Greek teams T2B, Grafas Diving and Addicted2H2O, wannadive, Wikipedia, Greek news reports 2015–2026, summaries of diving laws 3409/2005 and 4688/2020; Sept 2026); for Rhodes the dive centres Lepia and DiveMed, Scuba Hellas, Tribloo and Duikersgids (Oct 2026); Lepia Dive Centre (message, Oct 2026); for Crete and the Ionian Islands Grafas Diving, Addicted2H2O, divernet (Martyn Farr, 2018), showcaves.com, cretanbeaches.com and the pages of the dive centres Aquatic, Achilleon, Blue Adventures and Eurodivers (Oct 2026). Sea caverns at Lindos and on Kefalonia and Ithaca from the pages of Lepia and Aquatic (Oct 2026). For Paros the pages of Paros Divers (amphitritecave.com, parosdivers.com), T2B, Addicted2H2O and the municipality of Paros; for Drakos–Selinitsa in the Messinian Mani Addicted2H2O, Grafas Diving, showcaves.com, the German Wikipedia and the journals of the Northern Pennine Club (1982) and Cambridge Underground (1983) (Nov 2026). The springs of Polydrosos, Kolethra and Ladonas from Addicted2H2O (also by e-mail, Nov 2026), Grafas Diving, allovergreece.com, Amazing Evia and travel.gr (Nov 2026). Pins from T2B, wannadive, showcaves, OpenStreetMap or Wikipedia (see each site); ~ = estimate. Rules change — check locally.