Cruise in Underground Lake

A boat trip through the St. Leonard Underground Lake is hard to be described by words. Opened to public in 1949, this is the largest of its kind in Europe. The lake is 300 m in length, 20 m in width and and 10 m deep. The boat trip lasts for around 30 minutes and is accompanied by a running commentary in French, German, Italian, English. It is only open between March to November from 9 in the morning till 5 in the evening.