image from the karst complex called cetatile ponorului, apuseni mountains, romania

wilderness water terrain romania rock reflection portal ponorului plant phenomenon park nature natural mountains mountain landscape karst highest grandiose geology formation emblem complex coast cliff cetatile cave canyon called autumn apuseni karst limestone ponor apuseni outdoors autumn mountains rocky alpine background beautiful blue ponorului cliff colorful environment forest green hiking landscape lumea pierduta mountain muntii natural nature outdoor park rock romania scenery scenic sky stone summer tourism travel view