The Birg Thrill Walk at Schilthorn is free with your included Schilthornbahn ticket. It is a heart-pounding adventure that takes you along the vertical face of the mountain. With sections like a tightrope, glass floor, and a tunnel, it's not for the faint of heart! But don't worry, there are safety measures in place to keep you secure as you crawl, balance, and walk your way through this exhilarating experience. And the views of the Eiger, Monch, and Jungfrau mountains? Absolutely breathtaking! So, if you're up for a thrill and some stunning scenery, the Birg Thrill Walk is definitely worth checking out.