Lac souterrain St Leonard & Sion château tourbillon
From CHF 59 VOJ054
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Live an immersive experience in the heart of the Valais Alps Spectacular and unprecedented, the underground lake of St-Léonard is none other than the largest underground lake in Europe.
Live an immersive experience in the heart of the Valais Alps Spectacular and unprecedented, the underground lake of St-Léonard is none other than the largest underground lake in Europe.