Do I have to book accommodation in advance?Yes, to guarantee that you can stay at your chosen accommodation, you have to book in advance.
The difference in the mountain cabins is that you can not pre-book a specific room or bed. However, you can pre-pay for an unspecified sleeping place here. At our mountain cabins you are guaranteed a place to sleep. This means you always get an unspecified sleeping place, a mattress on the floor, or a regular bed. Quilts, pillows and blankets are given for both sleeping options.