フェルタンスの天然記念物・トップ11

a big hole

Remember not to venture too far into the cave

A beautiful valley - very relaxing to drive. La Roche Bottine is the right-hand rock edge that you see above Ornans. It is on the right of Ornans towards Lahier, above the D492 The left-hand rock edge is the Belvédére de Notre-Dame du Mont. Curious rock... its special shape inspired its name: La Roche Bottine   

The spring is simply gigantic and there aren't too many tourists - at least when we were there.

Here you have a view of three rock masses. The question is which one is the Roche Bottines

This highlight is located on the plateau under which the cave opening is located. It can be found via a dead-end path, but the view is a bit sobering.

The Sarrasine Cave impresses with its 90 m high portal. A 40 m thick layer of limestone separates it from the upper part of the plateau. The cave system has been explored for about 4 km, and hikers equipped with a flashlight can access it up to a small lake inside. https://www.lieux-insolites.fr

Very beautifully laid out and developed. There are also interesting information boards, e.g. about the underground connection of the local springs. At the end of the 19th century, a mill owner wanted to divert the water from the spring, which, after intervention by the population and a member of parliament, led to the first French environmental protection law. https://www.montagnes-du-jura.fr/