From the parking area at the Mining World Museum in Maiern/Masseria follow path no. 9 to the dam before Aglsboden. Don´t cross it, instead follow to the red and white marking to the left up to the summit Horn (2164m). Now follow on a narrow path the long and fairly exposed ridge to the summit of the mountain Krapfenkarspitze. Climb along smaller rocks up to the summit cross (1 ½-2 hours). Cross the summit plateau following the precise markings. Through a rocky area follow the red white markings downward until the lake Trüben See. From there following path no. 33 you reach path no. 9 below the mountain hut Grohmannhütte. From there descent to the departure point. Surefootedness, a good physical condition and no fear of heights necessary!