You will find the starting point in the carpark above the Ski Rental building near the Chairlift (stolheis). The first throwing point will be marked with a large, orange flag. You can use all the time you need, as long as the equipment is returned before Sirdal Lodge's closing time.
The course is free to use if you already have your own frisbees/discs.
If you do not have your own equipment, you can rent a frisbee set online and pick it up from the Sirdal Lodge restaurant.
The rental consists of mid-range, putter and driver for 150,- and a map.