Carved out of the limestone massif 4km above Zuheros is this extraordinary cave. From the vast hall at the start of the tour, it's a 430m loop walk through a series of corridors filled with fantastic rock formations. Traces of Neolithic rock paintings showing abstract figures of goats can be admired along the way.
Visits are by guided tour only and should be reserved by phoning Turismo Zuheros between 10am and 1.30pm Tuesday to Friday, or by emailing them.
The drive up to the cave is exhilarating, as the road twists and turns through the looming mountains, with vertiginous views from various lookout points.