The rock towers of the Kreuzberg rise imposingly above the St. Gallen Rhine Valley. They are breathtaking. The view from the north side is quite different, while no less impressive. Saxer Lücke – the famously beautiful gap along the eastern ridge of the Alpstein Mountains - is not far from the Bollenwees Mountain Inn and Fählensee.
A short but steep descent transports you into another world: standing in a narrow valley, walk a little further and discover an idyllic mountain lake hidden between high rock faces. If you are lucky and there is no wind, the surrounding Alpstein peaks are reflected in the water. Beyond the lake lie the rustic alpine huts and the goat and cow pastures of Fählenalp.
The hike, recommended from summer until late autumn, starts at Hohen Kasten and leads in a circular route to Brülisau. You pass three Appenzell Mountain inns to enjoy a snack or full meal on the way.