Hölloch Muotathal with an overnight stay in the cave
The Hölloch in the Muotathal is one of the largest cave systems in the world and, with more than 200 kilometres of explored passages, a unique natural wonder. Multi-day expeditions are offered for the adventurous, during which participants venture deep into the mysterious underworld and even spend the night in a cave bivouac. Far from daylight, visitors experience absolute darkness, immense rock formations, underground gorges and a fascinating silence. Spending the night in the heart of the cave is one of the most extraordinary experiences in Switzerland.