the cave under predjama castle, hoehle unter der burg predjama or jama pod predjamskim gradom - postojna, slovenia

adventure ancient art attraction background black burg castle cave cavern caves caving clip dark darkness deep der design drawing earth entrance formation geology glowing gradom graphic ground hoehle hole jama landscape light limestone mountain natural nature night outdoor outside picture pod postojna predjama predjamskim rock scene scenery slovenia stalactite stalactites stalagmite stalagmites stone tourism tourist travel tunnel underground underworld unter water yellow