This large cavity extends deep into the limestone rock (beautiful layering). Former outlet of the Lomme River, today about ten meters above the riverbed. A stunning resurgence that brings an underground river back to the surface.
Very nice valley to drive with a key passage. Please pay close attention to the path here, it's a bit difficult to find. After crossing the river you will have …
Narrow path with an adventurous feel when it is damp... Especially because of the smooth stones and sometimes also because of the ascent... There are regularly openings in the forest, giving you a nice view...