surging billow in huge basin australian rocky coast

against australia australian basin billow breaker cave cavernous cavity central cliff coast coastal crag danger dangerous eddy environment eroding erosion escarpment flow foam geological geology hollow hollowing huge impact landform landscape lap moonee munmorah natural nature ocean oceanic pacific point pounding power powerful rock rocky rough scene scenery sea snappers steep stormy surge surging swash swirl tidal tides torrent undermining water waters waves wild rugged current rip undertow foamy frothy