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Greece · about 19 km from Kandila

Ladonas spring (Lykouria)

  • Max depth47 m
  • CertificationFull cave
  • Water temperature≈ 12–13 °Cestimated, no reports yet
  • SpecialExperienced divers

Diving and fills

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What it looks like

All 2 videos and posts

Videos and posts

From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.

Videos shown with permission from the channel @addicted2h2o ↗

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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

The spring is a small, round karst pool where the water wells up from a hole. On its bottom starts a large karst channel, a tube floored with rock, clay and gravel that takes you down in water of 12–13 °C.

The water comes out of the spring at high speed: getting in is only easy when the current is not strong. Grafas gives the end of summer as the best time, when little rain means the least flow and turbulence.
A descending tube to -47 m in murky water: sediment and current always limit the visibility, and Grafas stopped in 2018 because of the extremely low visibility. Plan for very low visibility and, without trimix, stay shallower.
Profile and sections

The spring is a small, round karst pool where the water wells up from a hole. On its bottom starts a large karst channel, a tube floored with rock, clay and gravel that takes you down in water of 12–13 °C. At -10/-15 m Grafas Diving found two large, heavily oxidised shell casings, perhaps from anti-aircraft guns; how they got there, nobody knows. The trout of the Ladonas swim in the spring.

This is where the Ladonas rises, coming from the Aroania mountains (Chelmos); the place is also called Rahi Pyrgou or Kefalovrysso, and its water was once strong enough to turn twenty watermills at once. Grafas Diving first explored the cave in September and November 2018; Addicted2H2O later came three times to lay line, map the passage and film it.

Practical: an old cheese dairy stands next to the spring. According to travel.gr the site is not very well kept.

Depth and profile
Pool to -12 m with the entrance, 3–4 m wide, on the bottom. Behind it a tube that descends at 10–15° to max -47 m. In 2018 Grafas laid ~120 m of line to a sudden turn and an upward slope to an almost square opening that ended blind; Addicted2H2O got ~140 m in, with the last tie-off at -47 m. The cave seems to continue.
Configuration
Entrance 3–4 m wide: all configurations (estimate). Because of the depth: trimix.
DPV: Not DPV-suitable (estimate)
Short (~140 m explored), with a strong current: no scooter.
Gas
Trimix from 45 m
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 47 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveExperienced divers only · doesn't decide who may dive
Experienced diversDepends on water level or swell

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

Spring pool at 469 m south-west of the village of Lykouria (municipality of Kalavryta, Achaia), ~3 km off the main road, in the Chelmos-Vouraikos UNESCO Global Geopark, which is managed from Kalavryta. No dive centre offers cave dives here; no permit rule is known.

Plan your route ↗

Around Ladonas spring (Lykouria)

FillsNo fill station known nearby
Where to sleepAround Kandila on Booking.com ↗

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Other sites2 within 30 km

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Sources, sharing and disclaimer

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.