Top 14 Caves ヴァレーでの

Cave entrance, well... If you want to hike the Claveau irrigation channel, you have to go through this tunnel. Anyone with claustrophobia should definitely bring a flashlight. The lights weren't working in October 2025.

Only about 1.50 high, very narrow

A really great, varied section with bridges, tunnels and a waterfall.

The tunnel is on the right and is the beginning of the hiking trail around the lake. The trail is officially closed in winter.

When you arrive at the reservoir on the side of the Mattmark restaurant, you should definitely walk a short distance along the east side to the tunnel and cross it. In winter, a beautiful waterfall forms at the entrance and icicles hang from the ceiling inside too

You don't have to dismantle the handlebars, just place it sideways and you'll get through the tunnel

The Rhone Glacier (sometimes also called Rotten Glacier) is a valley glacier in the source area of the Rhone in the extreme northeast of the canton of Valais in the central Alps of Switzerland. It is almost eight kilometers long, has an average width of about two kilometers and covers an area of about 15 km². The glacier was a major tourist attraction, especially in the 19th and early 20th centuries, due to its tongue, which at that time still extended far down into the valley near Gletsch.

A glacier educational trail leads through the picturesque high mountain scenery along the glacier lake to the ice grotto near the glacier tongue. For almost 200 years, this has been carved into the glacier practically every year and inside you can experience a "blue miracle" because the grotto shines in a wonderful blue light. Despite the enormous melting of the glacier, the Rhone Glacier is still almost 9 km long and up to 200 m thick. The glacier movement at the level of the ice grotto in the tongue area is 30 - 40 m annually or up to 10 cm per day; nowhere else in Europe can you get as close to a glacier as in the ice grotto in the Rhone Glacier.