scarisoara ice cave, apuseni mountainsromania

scarisoara ice cave apuseni view church chamber icea mountains romania abseiling ancient big canyon carpathians cavern caving cold column corridor dark darkness deep destination discovering discovery drapery earth entrance erosion europe exploration explore exploring famous flowstone formation formations geography geologic geological geology glacier hole inside landmark ledge light location low natural nature room stalactites stalagmites straws tourist tunnels underground unexplored virgin visiting