beautiful wide-angle landscape view of karst sinkhole cehennem literature-heaven cave.

abyss ancient attraction background beautiful big blue bottom cave cavity cehennem cliff concept dangerous deep deepest depth earth erosion forest grand heaven hell historical hole huge its karst kizkalesi landmark landscape large literatureheaven mediterranean mersin mountain natural old one panorama panoramic pit process rock sight sightseeing silifke sink sinkhole sinkholes sky stone structure tourism tourist travel turkey turkish underground view wideangle