On a rainy day in the Grampians, Australia, Andi Barth and I decided to brush off all the charcoal graffiti in the Hollow Mountain Cave. This was part of my 2013 trip to the Grampians and the Blue Mountains with Daniel Müller, Andi Barth, Doro Karalus and Hessi.
Unfortunately the Hollow Mountain Cave got closed for climbing a few years ago and pretty much all good bouldering and route climbing areas in the Grampians are closed by now. I hope one day a solution will be found to reopen those areas for climbing.