Lünersee was naturally smaller before the dam construction in the 1950s doubled its water capacity.
The reservoir is a primary component of the Illwerke VKA hydroelectric power scheme, one of the most significant in Austria.
The lake's water has a distinct turquoise color caused by suspended glacial silt known as rock flour.
It is a frequent starting point for the climb to Schesaplana, a peak that marks the border between Austria and Switzerland.
The Lünerseebahn cable car was originally built to transport construction materials for the dam before being adapted for public transit.
Lünersee is a high-alpine reservoir situated at 1,970 meters in the Rätikon mountain range of Vorarlberg, Austria. The lake is artificial, created by the construction of a dam that serves as part of the Lünerseewerk hydroelectric power plant system. A circuit trail encircles the lake, spanning approximately six kilometers and requiring roughly two hours to complete. Access to the high plateau is primarily facilitated by the Lünerseebahn cable car from the Brandnertal valley. The surrounding peaks include the Schesaplana, which at 2,965 meters is the highest point in the Rätikon. The lake serves as a starting point for various alpine mountaineering routes, including the path to the Totalphütte. Water levels in the reservoir fluctuate significantly depending on hydroelectric demand and seasonal snowmelt. The area is designated as a protected landscape, emphasizing the preservation of its alpine ecosystem.
The dam wall provides an elevated panoramic view of the lake against the backdrop of the Schesaplana peak.
Bring a windproof jacket even in summer, as temperatures at nearly 2,000 meters are significantly cooler than in the valley.
Start the lake circuit trail early to avoid peak crowds on the narrow mountain paths.
Check local weather forecasts specifically for the high alpine zone, as conditions can change rapidly regardless of valley forecasts.
Attempting to walk to the lake from the valley floor without adequate hiking experience or gear, as the ascent is physically demanding.
Operates only during the summer season, typically closing in late autumn after the first snow, and does not operate in winter.
Stay strictly on marked paths to protect alpine vegetation, and pack out all waste, as there are no bins on the circuit trail.
