The starting point is the most fun; I highly recommend the Via Ferrata. It's all about fun and relatively safe. Note that there are two lines, one going up and one going down. If you go down but don't go back up, you'll have to go back to get your luggage, which costs twice. The zipline is an option, but the queue is 2 hours long, and the ride lasts only 5 minutes. Other attractions are best enjoyed as something new to try.