Diving Lünersee
Site Overview
Lünersee is a high altitude lake dive site in Vorarlberg, Austria, set among the country’s varied freshwater landscapes. The Lünersee sits at 1,970 m, a high-altitude lake beneath the Rätikon with a sheer dam wall and spectacular backdrop. It is guided-dives only because of the altitude, cold and remoteness, normally reached by cable car from Brand. The water is clear and cold, holding char and trout and giving a real sense of vertical space on the wall. Altitude certification and a drysuit are essential, and dives are run as controlled expeditions. The mountain setting is among the most dramatic in Austria. It is a serious high-alpine dive for self-sufficient or guided technical divers. Conditions are typical of Austrian inland water: visibility generally runs from 12 to 25 metres, the current is low and the water temperature ranges between 2 and 12 degrees Celsius depending on season and depth. The marine life is freshwater and centred on lake trout (brown trout), arctic char, grayling, with the full community described below for those planning a dive. Because of its technical rating and the need for Tec 40+ / Altitude certification, Lünersee is best approached with the right thermal protection and, where relevant, altitude or overhead training. It is a representative example of why Austrian lake diving, with its cold clarity, submerged forests and wrecks, attracts divers who want something different from tropical reefs.
Dive Briefing
"Entry is made from the shore near Brand, and divers should check in with a local centre before entering the water. The Lünersee sits at 1,970 m, a high-altitude lake beneath the Rätikon with a sheer dam wall and spectacular backdrop. It is guided-dives only because of the altitude, cold and remoteness, normally reached by cable car from Brand. The water is clear and cold, holding char and trout and giving a real sense of vertical space on the wall. Altitude certification and a drysuit are essential, and dives are run as controlled expeditions. Plan your profile around a maximum depth of 40 m and an average of 18 m, keeping a close eye on gas and, in deeper sections, on the cold thermocline. Buoyancy control matters: silty or vegetated bottoms and submerged structures are easily disturbed, and altitude at 1,970 m requiring certification is a real consideration here. A safe ascent with a surface marker buoy and a clear exit plan completes the dive, with emergency cover routed through Bregenz State Hospital."
Signature Marine Life
Lake Trout (Brown Trout)
Salmo trutta
Best: May, June, July
Arctic Char
Salvelinus alpinus
Best: May, June, July
Grayling
Thymallus thymallus
Best: May, June, September
European Minnow
Phoxinus phoxinus
Best: May, June, July
Noble Crayfish
Astacus astacus
Best: May, June, July
Roach
Rutilus rutilus
Best: May, June, September
Safety & Hazards
- Altitude at 1,970 m requiring certification
- Extreme cold with hypothermia risk
- Remote, guided-only access
- Sheer dam wall and depth
- Weather closing the cable car
- Very slow EMS response
Traveler Notes
Who is this for?
Lünersee suits technical divers holding at least an Tec 40+ / Altitude certification, and it is a strong choice for those who enjoy cold-water, freshwater environments. Photographers, training groups and divers chasing wrecks, walls or macro life will all find something here, provided they respect the temperature and the limits of an inland lake. It is less suitable for absolute novices unless booked through a centre running a supervised course, and overhead or very deep sections should only be attempted with the correct specialist training.
For Non-Divers
The Lünersee cable car from Brand; The Rätikon alpine trails; Brand and the Montafon; Border hikes to Switzerland
Quick Stats
Dive Logistics
- Bregenz Bodensee Divers
- Lünersee Alpine Dive
- Vorarlberg Tec
Photography Info
Best for: wide_angle
Nearby Stay
Hotel Schwärzler
Bregenz • 30km away
Hotel Hofgarten
Bludenz • 30km away