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.
Up until 1,900 years ago a terrifying dragon is said to have been up to mischief in a large cave at Lake Thun. Only the wandering Irish monk Beatus succeeded in driving away the dragon. Today the marvelous grotto world can be entered without risk.
There are two good reasons to make a stopover at Kleine Scheidegg on the way to the Jungfraujoch: for one thing, it gives your body more time to get used to the high altitude. For another, you'll have the chance to discover this pretty 19th century hotel and its sunny terrace restaurant.