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Kaatialan louhos

Finland · about 14 km from Kuortane

Kaatialan louhos

  • Max depth39 m
  • CertificationIntro to cave
  • Water temperature≈ 4–20 °C, varies with the seasonestimated, no reports yet
  • SpecialFlooded mine or quarry

Diving and fills

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What it looks like

All 3 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.

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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 water is clear in the open part, with less visibility in the tunnels. Sunk here are a small aircraft (~5 m), a 1960s VW Type 3 and a diving bell; the old haul road still runs across the bottom.

The system has several intersecting passages that can disorient less experienced cave divers, especially in poor visibility — run a line.
Profile and sections

The water is clear in the open part, with less visibility in the tunnels. Sunk here are a small aircraft (~5 m), a 1960s VW Type 3 and a diving bell; the old haul road still runs across the bottom.

Kaatialan louhos is a former feldspar and quartz quarry (1942–1968), also known among mineral collectors. It is dived year-round, ~2,000 visitors a year, with dive courses on site too.

Depth and profile
Two flooded basins; diving is mainly in the larger one. Cave system to -39 m, almost 100 m to the far end; smaller 'tourist caves' at -20 m. Diving bell at ~-20/-21 m.
Configuration
All configurations through the two larger openings; the third is barely diver-sized.
DPV: Not DPV-suitable (estimate)
Almost 100 m of passages; no gain.
Who can dive where
  • CaveAt least Intro to cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 39 m (trimix or deco may be needed) · doesn't decide who may dive
Flooded mine or quarry

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

Freely accessible without booking (jokamiehenoikeus, Finland's everyman's right); landowners and the municipality support responsible use. The municipality has built parking and toilets. Entry via the gentle mine road at the shallow end or via stairs to a platform at -4 m at the deep end. Address: Louhostie 339, 63230 Kuortane. Local clubs (Lakeuden Sukeltajat, Bothnia Gulf Divers) organise visits.

Plan your route ↗

Around Kaatialan louhos

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

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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 (Sukeltaja-lehti 2025–2026, Montolan Kaivossukeltajat (rules, 2024 safety document), ojamodive.fi, City of Lohja, Yle 2026, MTV 2017, X-Ray Mag 2013, Divers of the Dark, Divers24, SLL Lohja, Sukeltajaliitto, Kuortane municipality, Divers B&B, Tyks, Tukes, Arctic Divers, Jyväskylän Delfiinit, Lohjalla tapahtuu, Wikipedia; Sept 2026); for Haveri the rules of Haverin kaivossukeltajat ry, dykarna.nu and the Finnish Wikipedia (Nov 2026); added in Nov 2026: Yle 2012 and 2017, MTV 2021, the municipality of Tuusniemi and the Montolan Kaivossukeltajat site. Pins from Montolan Kaivossukeltajat, the Sukeltajaliitto MML map link and OpenStreetMap (Haveri); Ojamo (approximate) and Kaatiala from wannadive. ~ = estimate. Rules change — check locally.