The Treiensee is a mountain lake in the Lechtal Alps. The lake lies at 1843 m below the Namlos Wetterspitze. The mountain lake has a crescent shape and a diameter of almost 200 m. Lake Treiensee is easiest to reach from the 1208 m high mountain village Namlos. The trail starts in Namlos at the parking lot and runs along a forest path into the Brenn-Hutntal valley. After some time you reach the Treienbach, here the path branches off to the right and immediately begins to get steeper. At an altitude of about 1660 m you pass the Treienalm and the terrain becomes flatter again. The walking time from Namlos to the Treiensee is 2 to 2.5 hours.
