Diving Grube Roter Bär
Site Overview
Grube Roter Bär is a cave dive site in Flooded Mines & Caverns, Germany, reached from the base town of Harz. Grube Roter Bär is a historic flooded silver mine in the Harz with spectacular stalactites and guided overhead dives. Its mineral formations and tunnels make it one of the most beautiful mine dives in Germany. The site reaches a maximum depth of 22 m with an average profile around 13 m and a shallow start near 2 m, which places it firmly in the advanced category and means divers should hold at least an Mine/Cave certification. Conditions are typical of the flooded mine environment: visibility generally runs from 10 to 28 metres, the current is weak, and the water temperature ranges between 8 and 10 degrees Celsius with low surge exposure. The marine community is centred on Signal Crayfish, Common Roach, Common Minnow, Common Rudd, European Eel, Tench, and the full species list is detailed below for divers planning a trip. The combination of tunnel, gallery topography and rock substrate gives Grube Roter Bär its distinctive character within the Flooded Mines & Caverns region. Grube Roter Bär is a strong representative of why German diving is so highly regarded, blending the geology, history and biodiversity that define the country's underwater exploration. It pairs naturally with the other sites of the Flooded Mines & Caverns region for a varied holiday, and with the right thermal protection and, where relevant, the correct specialist training, it offers a memorable dive for photographers, naturalists and wreck, reef or freshwater enthusiasts alike. As with every German dive, a drysuit and a careful respect for cold-water limits turn a good day into a great one.
Dive Briefing
"Entry is made by a shore entry near Harz, and divers should check in with a local centre in Harz before entering the water. Grube Roter Bär is a historic flooded silver mine in the Harz with spectacular stalactites and guided overhead dives. Its mineral formations and tunnels make it one of the most beautiful mine dives in Germany. Plan your profile around a maximum depth of 22 m and an average of 13 m, keeping a close eye on gas and, in the deeper or enclosed sections, on the low surge. Buoyancy control matters here: the rock bottom and submerged structures are easily disturbed, and Flooded silver mine, Cold water, Overhead environment are real considerations throughout the dive. The cave topography offers tunnel, gallery, and the marine life centres on Signal Crayfish, Common Roach, Common Minnow, Common Rudd, European Eel, Tench alongside the other species listed for the site. Take a moment to review the site-specific hazards with your guide, because conditions at Grube Roter Bär can shift with wind and tide and change the feel of the dive. A safe ascent with a surface marker buoy and a clear exit plan completes the dive, with emergency cover routed through Druckkammerzentrum, Medizinische Hochschule Hannover."
Signature Marine Life
Signal Crayfish
Pacifastacus leniusculus
Best: January, February, March
Common Roach
Rutilus rutilus
Best: January, February, March
Common Minnow
Phoxinus phoxinus
Best: January, February, March
Common Rudd
Scardinius erythrophthalmus
Best: January, February, March
European Eel
Anguilla anguilla
Best: January, February, March
Tench
Tinca tinca
Best: January, February, March
Safety & Hazards
- Flooded silver mine
- Cold water
- Overhead environment
- Restricted access
- Silt out
Traveler Notes
Who is this for?
Grube Roter Bär suits advanced divers holding at least an Mine/Cave certification, and it is a strong choice for those who enjoy the flooded mine water of Germany. Photographers, training groups and divers chasing cave, advanced will all find something here, provided they respect the temperature, local access rules and the limits of each site. It is less suitable for absolute novices unless booked through a centre running a supervised course, and the deepest or most enclosed sections should only be attempted with the correct specialist training and a guide. Planning a dive here with a licensed German operator not only keeps you safe but also helps protect the fragile reefs, wrecks and freshwater habitats that make the site special for the next visitor.
For Non-Divers
Harz; Mine museum
Quick Stats
Dive Logistics
- Gruben-Tauchzentrum
- Höhlentauchen Deutschland
- Sachsen-Anhalt Mine Dives
- Saarland Sumpf-Tauchgang
- Thüringen Cave Diving
Photography Info
Best for: wide_angle
Nearby Stay
Hotel am See Harz
Harz • 2km away
Pension Harz
Harz • 3km away