Weaving through limestone outcroppings, we hiked the stunning Lisengrat, a sinuous chain-protected trail from Rotsteinpass to the summit of Säntis. The Lisengrat is a magnificent ridge route between Säntis (2502 m / 8218 feet elevation) and Altmann (2435 m / 7989 ft), the two highest peaks in Appenzell's Alpstein range. The rocky route is safe, but can be scary for those with fear of heights. Shared by three cantons, Säntis can be reached easily via cable car or with effort via trails, to see vast mountain views across six countries: Switzerland, Germany, Austria, Liechtenstein, France and Italy. The Appenzell Alps rise between Lake Walen and Lake Constance.