가장 멋진 동굴 5곳

Cannot be reached directly from the cycle path.

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After a small barrier and a small climb comes a nice point to rest. Attention, it is not recognizable at first glance. Behind the bush is a very small path.

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High grotto with wonderful limescale deposits - accessible via a metal ladder even without equipment. The grotto does not lead deep into the rock, the daylight is sufficient, you do not need a flashlight. It is freely accessible to everyone.

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On the other side of the train tracks up the hill are the wild undeveloped karst caves of Fourbanne, a dream for fans of speleology. Bring good light, rugged cloths, and wear your helmet (you're biking, so you have a helmet!). https://inpn.mnhn.fr/zone/znieff/430013670 See video https://www.youtube.com/watch?v=7nxTiEY92I8

The cave is listed as a real classic among speleologists. Through a very small shaft entrance of just 30 x 50 cm. you have to abseil about 7 meters ... Then the next 18 meter deep shaft. A final climbing step, about 5 meters lower, ends in an impressive and large hall with beautiful stalactite columns.

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A small detour to the source of Arcier, watch out for hikers! You will be able to see the castle of Arcier there as well as the ruins of the old Roman aqueduct of Besançon. ============= A little detour to the source of Arcier, beware of the hikers! You'll be able to see Arcier's castle and the ruins of Besançon's Roman aqueduct. https://fr.wikipedia.org/wiki/Sources_d%E2%80%99Arcier https://fr.wikipedia.org/wiki/Aqueduc_de_Besan%C3%A7on

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