Top 100Cetățile Ponorului
Bihor County
A karst complex on the Padiș Plateau: three huge sinkholes with walls over 200 m high and a portal over 70 m tall where the Cetăților stream vanishes into the mountain. Seen from a marked hiking loop, not a show cave.
CavesNational parks and reserves
Open now3½ – 4 hoursFree
