Οι 6 κορυφαίες σπηλιές στο Όμπβαλντεν

@heloks isn't quite right. The mighty Dürren fortress is considerably larger. This is the Renggpass barrier.

The Mondmilchloch (Mondmilk Hole) is a karst cave in the Pilatus Massif (Emmental Alps) in Switzerland. It is the type locality of the so-called Mondmilch (moon milk). Location and Access: The Mondmilchloch is located on the south side of the Widderfeld mountain range at an altitude of 1,710 m above sea level. The entrance to the cave is only visible when standing directly in front of it. The small stream that springs from the cave can serve as a guide. From the buildings of the Birchboden Alp (1,610 m above sea level), a path marked with orange dots leads, initially level, then slightly uphill, over pastureland, scree slopes, and through strips of forest to the cave entrance. Cave Description The cave is 170 m long and 22 m wide.[1] The hall-like anteroom and the transition area lead to the crevice-shaped part of the cave (approx. 40 m). At 52 m, there is a wedged boulder. From 57 to 62 m, there is a low section that only allows progress on all fours. You reach the first waterfall at a height of 3.3 m. This is followed by a gently rising section with small steps until, at about 80 m, a side passage opens on the right, from which water flows. Now you reach the narrowest passage, approximately 20 cm wide (the "mousetrap"). At 100 m, there is the second waterfall, 2.2 m high. Shortly after, the water enters from the ceiling, marking the end of the accessible cave. https://de.wikipedia.org/wiki/Mondmilchloch

very pretty here, very pretty

The path in the Aa Gorge leads through a small natural tunnel, nothing spectacular, but very beautiful.

What a highlight is that supposed to be 🤔🤷‍♀️

A hole in the rock where you can climb up using a metal staircase. Not exposed and easily doable.

A small trickle flows through the cave. So be careful not to step into the water.

The Chastelendossen is about halfway between the Klimsenhorn and Tomlishorn on the Alter Tomlishornweg. In this direction, it offers the last break before the very exposed ascent and Kraxen sections to the Tomlishorn. A few minutes below the saddle you will find a fountain and right by the saddle there is a small cave... there is even a toilet in there.