All I will say is Rotorburn strava indicates people say one thing and do another...Serious question. My better half is encouraging me to sneak down to my usual trails (25 kms away) for a ride, no popping into the coffee shop or anything. We have had one solitary case in our lga, there is nada near the trails. I'm wfh, double vaxed, and wear my mask whenever out.
I feel bad for even contemplating it...but....
You might find the 5km dropped if you are in Vic..