No, Rosco ... know nothing about Gumbuya. (Sadly - I know nothing about speedway and track at all!)
I walked a bit of Pakenham Upper MX track five years ago. Portburys live on it now. It's amazing how many
small trees have grown up through the track. You couldn't ride through them.
I think there are heaps of trees on Wallan MX track too, as seen from photos of Les Barfoot and Rosco Holden
about three years ago.
I wonder what sits on or in the crater bowl that was Bairnsdale track?
PS: Love the aerial shot, Steve 234!!
PPS: It's 'Sleuth' .... Rosco you school principal!