★ Fat Mattress 17

Start up Venom and step R at 3m. Bridge up a slightly overhanging corner crack system to a ledge. Crank hard off the ledge to get up the next hand crack with some difficulty, then to a rest. Easily to the top. Bolt anchor/belay. Used to be graded 15!! Climbed by Rick White and Ian Cameron by aiding the start in Jan 1971.

Frog is seen by some as the last bastion of "hard man" ethics in Qld. It features predominantly naturally protected crack climbing of the highest quality.

Therefore it is not Kangaroo Point or Nowra, and anybody expecting to come to Frog on a sport climbing mission should pack up their draws and lycra pants and go back there. Retro bolting is severely frowned upon, and bolts are to be placed only on first ascents if there is no protection of any kind available. (Bolting is technically illegal in national parks, be warned). Failure to follow this simple rule could see the bolts chopped and the offender dragged into the bushes by strange bearded men, and then clubbed to death by No. 8 hexes.

Chipping of holds is strictly forbidden, and budding sculptors should piss off. If you can't do the climb, don't lower it to your standard, instead, raise your standard to the level of the climb! Top roping is frowned upon, more so because setting up top anchors can be quite difficult and even dangerous due to the very loose nature of the top of the cliff.

Large portable stereos also seem to have an unfortunate habit of having rocks land on them! Use the toilets at the car park and please carry all rubbish out with you!

Credit: A Cheap and Nasty Guide to Frog Buttress. Andrew Martin