He can visit between March 15 and October 30, and visit his worth. The Saint-Léonard underground lake situated there is a tourist attraction. Discover 77 private villas to book online direct from owner in St.Leonard Underground Lake, Saint-Léonard. With a length of 300 and a width of 20 m it is the largest underground lake in Europe. The subterranean lake of St-Leonard is located in Switzerland, along the Rhone valley, between Sion and Sierre in the heart of the Swiss Alps. Choose from more than 5,000 properties, ideal house rentals for families, groups and couples. Find your perfect stay from 101 Saint-Leonard Hotels near St.Leonard Underground Lake and book Saint-Leonard hotels with lowest price guarantee. With a length of 300 and a width of 20 m it is the largest underground lake in Europe. With a length of around 300 meters this is the largest natural underground lake in Europe which can be explored by boat. Rome2rio makes travelling from Saint-Léonard underground lake to Lausanne easy. Estimated price for 1 night / 2 adults. Need a good hotel near St.Leonard Underground Lake? - page 2 of 89 Book your accommodation near St.Leonard Underground Lake now and unlock secret prices & special discounts! The largest underground lake of Europe. Saint-Leonard Switzerland. Rent a whole home for your next weekend or holiday. At St. Léonard, on the main road between Sion and Sierre, on the right bank of the Rhône, 5km from the capital of the Canton of Valais, is the largest underground lake in Europe. Looking for the best hotel near St.Leonard Underground Lake? With 300m length, 20m wide, 10m depth, this is the biggest natural underground lake in Europe which you can visit by boat. Guests 1 room, 2 ... Venture to sights like St.Leonard Underground Lake as you discover the local area in Saint-Leonard. Saint-Léonard underground lake (French Lac souterrain de Saint-Léonard) is located at Saint Léonard in the canton of Valais, Switzerland.It is formed where a bed of Triassic gypsum, emplaced within impervious Carboniferous strata, has been dissolved by groundwater. More. www.st-leonard.ch SFSO statistics: Saint-Léonard is a municipality of the district of Sierre in the canton of Valais in Switzerland. 4,424 vacation rentals to book online direct from owner in St.Leonard Underground Lake , Saint-Léonard . The visit takes about an hour and there are guides for 4 languages. From the cave comes powerful spring, creating some 60 m tall, free falling waterfall. Read more . The infinity pool with spectacular views of Lake Lucerne. If you're looking for things to do in the area, you might like to visit Four Valleys Ski Area and Leukerbad-Therme. The interactive Grand Tour of Switzerland web route is sure to awaken the tour fever that lies inside.