Důl Hraničná
Mine and cave diving in Czechia · about 9 km from Javorník
- Max depth
- 120 m
- Trimix from
- 40 m
- Type
- Backmount
- Certification (estimate)
- Full cave
- DPV
- DPV possible
Iron-ore mine (magnetite with white marble, hence striped walls) on the site of the vanished village of Hraničná. Mined from the late 18th or mid-19th century (sources give 1790 and 1856) until 1967–68.
More about Důl Hraničná
Signed-in divers also see:
- Whether this site fits everyone's certification, gas and gear
- Access, parking and the route from the road
- Exact map pin and navigation
- Depth profile and sumps
- Configuration advice
- Warnings with sources (4)
- DPV suitability
- Driving times from your stay and a plan with the AI instructor
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Current conditions
Visibility, flow and water levels change quickly. Right before your dive, check what other divers report:
- Mine Diving CZ – Důl Hraničná ↗
The operator's site: contacts, diving conditions, safety rules, map and a calendar of free dates.
- Strany potápěčské ↗
Czech dive-site database with GPS, access rules and recent dive reports (visibility, temperature) per site.
- Česká speleologická společnost (ČSS) ↗
Czech caving federation; its local groups (e.g. ZO 7-02 Hranický kras and ZO 1-10 Speleoaquanaut) do the cave diving in Czech caves.
- Speleoaquanaut (ZO ČSS 1-10) ↗
Prague cave-diving group with reports from Důl Hraničná and the Moravian Karst.
- Hranická propast ↗
Site about the research in the Hranice Abyss: key figures and news.
Plan a cave diving trip to Czechia
Enter your team, with certifications, gas and configurations, and see right away which caves fit. With driving times from your stay, fill stations and an AI instructor who thinks along.
Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Mine Diving CZ/minehraniczna.cz and HP Diving: Nov 2018 diving conditions and safety rules; Javorník town, Kudy z nudy, Deník 2019–2023, DIVE Magazine 2022, minediving.de, dark-team.de, Speleoaquanaut; hranickapropast.cz, Hranice town, Ochrana přírody 2023, ČT24 2019 and 2020, České noviny/ČTK, iROZHLAS and Hanácká Drbna 2026; speleo.cz (ČSS), Czech Geological Survey, Advanced Diver Magazine, turistika.cz, Deník 2023 and 2025; Wikipedia; stranypotapecske.cz; Divecentrum Hradec Králové, Trygon Brno, Zero Gravity; Ostrava City Hospital and Ostrava city; Sept 2026). Pins from Wikipedia, stranypotapecske.cz, HP Diving and turistika.cz. ~ = estimate. Rules change — check locally.