Grotte aux Fées

The Grotte aux Fées (lit. 'Cave of the Fairies') in the cliffs above Saint-Maurice in the Swiss canton of Valais, is a natural limestone solution show cave, featuring a 77-metre (253 ft) high underground waterfall (Cascade de la grotte aux Fées), claimed as the world's highest waterfall in a show cave. The cave was the first show cave in Switzerland.