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Bicycle tour to the source of the Isar and to the Kastenalm alpine hut

Bike tour:Round tour

Start: Mittenwald ; Bahnhofplatz ; Zentrum - Destination: Halleranger Alm ; Karwendeltal ; Aussenbereich ; A - 6108 ; Scharnitz

This bicycle tour to the source of the Isar river and to the cozy Kastenalm alpine hut is a popular tourist destination for anyone who loves to tour through unique landscapes but does not prefer climbs that are too steep. The route leads through the beautiful Hinterautal valley, rising slightly but steadily all the while, along the Isar river to its source. There you will also find the Kastenalm alpine hut, which is operated during the summer months.

Tour dates

  • Duration3:18 h
  • Distance44.5 km
  • Difficultyeasy
  • Altitude625 m
  • Lowest point915 m
  • Highest point1223 m

Tour highlights

    • Sources of the Isar river – rest & relaxation options
    • Unique landscape of the Hinterautal valley
    • Bicycle route along the origins of the Isar river

Tour description

This bicycle tour to the source of the Isar river and the nearby Kastenalm alpine hut begins with a ride from Mittenwald through the Riedboden nature conservation area to the neighboring Austrian town of Scharnitz, to the entrance of the Karwendel valleys. Passing the "Wiesenhof" alpine restaurant and the Gleierschhöhe mountain, cyclists and mountain bikers will enter the Hinterautal valley. With a steady, slight rise, the forest road leads along the origins of the Isar river through the unique landscape of the Hinterautal valley to the sources of the Isar in an idyllic alpine pasture, shortly before reaching the Kastenalm alpine hut. Here, cyclists can enjoy the quiet, the lovely nature and can refill their water bottles with crystal-clear spring water. The nearby Kastenalm alpine hut is operated during the summer months and offers traditional snacks, as well as refreshing beverages. The return to Mittenwald follows the same route as the approach.

Height profile