I noticed a thread on this some time ago but can't seem to find it just now.
Considered paintball? There is an action paintball there south of Perth.
I went this weekend... my back looks a little tatty now but its great fun... Not a good feeling that your mates like to shoot you in the back tho! ha.
You were shot in the back for the CRIME of having your boxer shorts hanging out of the top of your jeans 
