Very long hike that requires good physical condition. To save time it is advisable to cycle to the Kastenalm and then continue on foot to the Hallerangerhaus.
From the information office Scharnitz from Isarlodge Wiesenhof, continue to Gleirschhöhe. From there take the left forest road in the direction of Isarursprung. Park your bike just before the Kastenalm and cross a small bridge. Then steeply uphill past the Lafatscher Niederleger to the Halleranger. Arrived at the Almboden, the paths divide, here right to the Hallerangerhaus or continue the path to the Hallerangeralm.

For those who want a sneak peek, here are two videos:
 

• Hallerangeralm
• Hallerangerhaus

Return to the starting point along the same path.

Details for one direction:

• Bike route nr. 578: approx. 14 km, 300 hm uphill, 01:30 h, difficulty: easy (Time there and back: 2h)
• Hike route: approx. 7 km, 530 hm uphill, 02:30 h, difficulty: medium (Time there and back: 4h)

For those who want to extend the tour, there is the Bike & Hike Tour to Speckkarspitze.