Vilsalpsee was formed by glacial erosion during the Würm glaciation period.
The lake serves as a significant stopover for migratory birds in the High Alps.
It remains one of the few places in Tyrol where the endangered Alpine char thrives in its natural, cold-water habitat.
The surrounding Vilsalpsee-Lache nature reserve covers approximately 16.2 square kilometers.
The Vils waterfall at the southern end of the lake is fed by runoff from the Traualpsee located higher in the mountains.
Vilsalpsee is an alpine lake situated within a protected nature reserve in the Tannheimer Tal valley of the Austrian Alps. The lake sits at an elevation of 1,165 meters and is surrounded by peaks including the Gaishorn and Rauhhorn. Fed by mountain streams, the lake reaches depths of up to 28 meters and provides habitat for rare flora and fauna, including the protected Alpine char. A circular trail surrounds the water, connecting the northern shore to the southern end where the Vilsalpsee waterfall is located. The area is designated as a European Nature Protection Area due to its sensitive ecological balance. Vehicular access to the lake is strictly regulated, restricting private traffic during peak daylight hours.
The northern shore facing south, capturing the lake surface with the prominent Rauhhorn peak in the background.
Use the shuttle service from Tannheim to reach the lake, as private car access is prohibited during the day.
Wear sturdy hiking footwear, as the path around the lake features uneven, rocky terrain.
Carry layers, as temperatures at this elevation can drop rapidly even during summer months.
Do not attempt to drive your private vehicle to the lake during restricted hours, as local enforcement is active.
The road to the lake is closed to private vehicles during the daytime in peak summer and autumn seasons.
Stay strictly on marked paths to protect the fragile Alpine vegetation, and keep dogs on a leash at all times.