technical
    (40)

    Diving Lünersee

    40m Max
    12-25m Vis
    shore

    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)

    high

    Salmo trutta

    Best: May, June, July

    Arctic Char

    high

    Salvelinus alpinus

    Best: May, June, July

    Grayling

    low

    Thymallus thymallus

    Best: May, June, September

    European Minnow

    medium

    Phoxinus phoxinus

    Best: May, June, July

    Noble Crayfish

    low

    Astacus astacus

    Best: May, June, July

    Roach

    low

    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
    Nearest Chamber
    Bregenz State Hospital
    20km away

    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.

    freshwater
    high-altitude-lake
    altitude
    technical
    wall-dive

    For Non-Divers

    The Lünersee cable car from Brand; The Rätikon alpine trails; Brand and the Montafon; Border hikes to Switzerland

    Quick Stats

    Difficultytechnical
    CertificationTec 40+ / Altitude
    Currentlow
    Water Temp2-12°C
    Best TimeJuly - September

    Dive Logistics

    Operators
    • Bregenz Bodensee Divers
    • Lünersee Alpine Dive
    • Vorarlberg Tec
    Pricing Guide
    $140 - $280
    Per 2-tank boat dive

    Photography Info

    Recommended Gear
    16-35mm
    14mm

    Best for: wide_angle

    Nearby Stay

    Hotel Schwärzler

    Bregenz30km away

    Check Availability

    Hotel Hofgarten

    Bludenz30km away

    Check Availability