The Invitation Trail was held on June 30.
1963 GMH Motoring Club Invitation Trial
The event was directed by Bob Watson, possibly the first of many events directed by Bob. Not surprisingly, the event started from the GHM factory at Dandenong then headed north through the Dandenong Ranges and east into the Gembrook forest to a lunch break near Drouin. The second half returned to the GMH Factory via Poowong and Koo-Wee-Rup.