The shorter N/S strip is actually sort-of the taxiway for the main strip, however the main strip is quite damaged and bumpy at times, so the shorter side strip became the main one. The tigers just use the shorter strip. The other strip looks to be around 500 - 600 metres and is frequently used depending on the wind direction. If you are in pretty much any RA aircraft the NS short runway will be fine.
Make sure you ring them before you go or they will get quite unhappy.
Grovedale is going strong still, was there recently and Barwon Heads is the same political nightmare it has always been.