Zig Zag Railway at Knapsack Bridge Track to Glenbrook Raaf Base

Hi Everyone,

I have been recently exploring the Knapsack downhill track and found the bottom of it after setting off from Penrith to the GWH to Mitchell Pass on my mountain bike. I was hoping to find a track to the RAAF base so I could get to Glenbrrok. Does anyone know a better way to get to the RAAF base?

Karen