This was our favorite memory from our stay in interlaken! The hike up was strenuous- it took us 1 hour 45 minutes up, and 45 minutes to get down. The view is worth it- breathtaking. There is a natural mountain water stream halfway through that was a delight! We are semi-athletic and we were slightly sore the next day, and very tired day of, but we would absolutely do it again! And it was free!