Bendethra Camp Site - Deua National Park: the cave entrance,if you wish to go further in you will need good torches,gloves and long pants et'c as it is a tight squeeze in some places,this is not a tourist destination because of the terrain but the walk is definitely worth doing. We went early and met 60 or more people on our way out.
Photo kindly supplied by Ross Bartlett of Moruya NSW.