Eastern Slovakia · about 2 km from Červenica
Opálové bane Dubník (Slovak opal mines)
- Max depth70 m
- CertificationFull cave
- Water temperature≈ 4–6 °Cestimated, no reports yet
- SpecialFlooded mine or quarry
Diving and fills
Dive here with
The dive
Underwater the walls are covered in colourful mineral crusts, with orange limonite stalactites and mining remains over 100 years old.
Profile and sections
Underwater the walls are covered in colourful mineral crusts, with orange limonite stalactites and mining remains over 100 years old. These are the first and for centuries the only opal mines in the world (written records since 1597).
Practical: according to OpalDivers good buoyancy, personal line marking and awareness are essential.
- Depth and profile
- 17 levels, 4 of them flooded; almost 5 km of flooded tunnels; the deepest point is almost 70 m below the water level (OpalDivers). A main line with arrows, plus side tunnels.
- Configuration
- Rebreathers and stages are used here (Hollis); agree the configuration with OpalDivers (estimate). Drysuit with heating.
- DPV: Not DPV-suitable (estimate)
- Mine tunnels with a carry through dry tunnels: no scooter.
- Gas
- Trimix from 40 m
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Configuration unknown — research beforehand
- Goes down to 70 m (trimix or deco may be needed)
- Experienced divers only
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
Only through OpalDivers: private guided dives for certified full cave divers (groups of 1 to 4 divers), with a medical statement and dive insurance. Entrance via the Jozef adit, between Zlatá Baňa and Červenica (free parking); you carry your gear ~300 m through dry tunnels to the water and enter through a 45° shaft (Hollis).
Around Opálové bane Dubník (Slovak opal mines)
FillsNo fill station known nearby
The links to Booking.com are affiliate links: if you book through one, DiveTripPlanner earns a small commission. You pay the same.
Going to eastern Slovakia with your team?
Marcel finds the sites that match your team's certifications.
Plan a trip