The last move in the route is a nice roof dyno to a huge jug at the lip oh the roof

Cameron Fairbairn on Media Puzzle grade 23 (5.11c), Sentinel Cave, Grampians, Australia. Photo Neil Monteith FujiVelvia100

Andy on Stepping on snakes (23).

Andy on Army of Ants (27).

Andy on Army of Ants (27).

Malcolm Matherson ticks this massive roof first ascent grade 26 (5.12b), Sentinel Cave, Grampians. Photo Neil Monteith Sony Digital

15-20 minute walk-in. From the Mt Stapylton Campsite aboriginal shelter carpark walk south east following the east side of a vegetated creek. A few minutes into the walk you will pass an isolated pillar of rock (Castle Crag) with a few ok routes on it. Keep following the creek, walking along nice kangaroo grass and ferns for ten minutes until you can see a red cave above some large walls up and to the left. Try and locate some rock cairns and follow these up gentle hill. Follow left branch of ‘creek’ up small rock gully on the left side of the cave until you can traverse directly right across exposed rock to get into the cave.

Jaqui Middelton nears the top of Stepping on Snakes (23), Sentinel Cave, Grampians, Australia. Photo Neil Monteith Fuji Provia 100

Neil Monteith pops the end dyno on his new route Stepping on Snakes (23), Sentinel Cave, Grampians, Victoria, Australia. Photo Kathy Dicker 35mm Slide

Jaqui Middleton on the lower moves of the very steep Army of Ants (27), Sentinel Cave, Grampians, Victoria, Australia. Photo Neil Monteith 35mm Slide

Nick McKinnon 'Stepping on Snakes' (23), Sentinel Cave, Grampians, Victoria, Australia. Photo Neil Monteith 35mm Slide

Jacqui Middleton pops the dyno at the end of the roof section of Stepping on Snakes (23), Sentinel Cave, Grampians, Victoria, Australia. Photo Neil Monteith Sony Digital