Loud thundering and roaring in the interior of the mountain, gurgling, foaming and churning water: these are the Trümmelbach Falls. They are Europe's largest subterranean water falls and are located in the Lauterbrunnen Valley, often called the valley of 72 waterfalls.
The popular rafting tour takes you through the impressive Vorderrhein canyon, one of the most popular white water stretches in the Alps.
Once upon a time it was hated. Travelers called this deep ravine in the Hinterrhein Valley the "Bad Path". It was an obstruction on the journey through the Alps. Beautiful, but wild and threatening. And today this is exactly the reason why one travels to the Viamala.