Lac St-Léonard
Underground Lake Adventure
The lake that takes your breath away
25–30 min from Alp Art Hotel, Lac de St. Leonard features boat tours inside the cavern. Yearround,family-friendly. Guided tours explain geology and legends.
*Please note that activities are not included with your room.
Best Time to visit
All year
You’ll step into the magic of St-Léonard Lake, where nature, adventure, and breathtaking scenery come together in a unique experience. From the crystal-clear waters to the surrounding cliffs and trails, you’ll discover Valais in its most spectacular form and feel the beauty of the landscape at every turn.
Between lakeside walks, boat rides, and moments of pure relaxation, the atmosphere remains peaceful and inviting, with plenty of opportunities to explore at your own pace. St-Léonard Lake is about wonder, adventure, and unforgettable views — a stunning way to experience Valais through its nature, its energy, and its moments of awe.
Are you team car or public transport?
By car from Alp Art Hotel
~25–30 min via Route 21
By public transport
Monthey → St-Léonard bus (~40–45 min)
Need a hand planning your activities?
Book in advance, as visits can be popular, especially on weekends and during peak season. Allow enough time to fully enjoy the underground lake, the boat tour, and the unique atmosphere — and don’t forget your camera.
Bring comfortable shoes and a light jacket, as the underground temperature is cool all year round.
