view from cave hole to forest river landscape

abandoned cave cavebackground cavedark cavedoor caveentrance caveexplorer cavefloor cavehole caveinside caveinterior cavelake cavemountain caveopening caverock cavestone cavetexture cavetubing cavewall cavewalls cavewater cavewaterfall closeup discovery empty entrance exploration formation geological geology granite hill hole landscape large light limestone locations natural nature outdoors pit rock scenic stone tourism travel underground view water