The Achensee is a lake north of Jenbach in Tyrol, Austria. It is the largest lake within the federal state, and has a maximal depth of 133 metres. Together with the Achental valley it parts the Karwendel mountain range in the west from the Brandenberg Alps in the east.
Water quality is near drinking water, with sight up to 10 m below the surface. An alpine lake, water temperature is accordingly low, rarely above 20 °C. Its size and wind conditions make it suitable for surfing.
Eben am Achensee, Achenkirch, and Pertisau are municipalities on the lake.
The Achensee Region - a paradise for all keen walkers and hikers.
All keen hill and mountain walkers, hikers and climbers are certainly at the right address here in the Achensee Region with 450 km of well looked after and sign-posted trails - from gentle hill walking to adventurous mountain hiking - reaching around 2.500 m above sea-level, through beautiful unspoiled nature trails, through valleys or along the edge of the lake - a walking holiday certainly to be remembered!