The river Orbe created the Fairy Caves at the Vaudoise town of Vallorbe. The caves constitute a fascinating grotto complex. The round trip tour leads visitors along the subterranean course of the river to stalactites, stalagmites, dripstone structures, columns and to galleries.
For over 100 years asphalt was laboriously mined in the underground asphalt mines of La Presta and exported all over the world for road construction. Today the mines are no longer in operation and are partially open to the public as a museum.