The Trummelbach Falls near Lauterbrunnen in Switzerland are a series of ten glacier-waterfalls inside the mountain made accessible by tunnel-lift and are illuminated. They are the only glacier-waterfalls in Europe still accessible inside the mountain. The source of the falls are the glacial melt waters of the mighty Eiger, (3970m), Monk (4099m) and Jungfrau 4158m).  Walking inside the mountain with the falls thundering past inches away from the path is a surreal experience but one you will never forget.

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