You are looking for a small sistema in a cavity at the base of the tree.
PLEASE make sure it is not visible after replacing it.
Centenary Park - a beautifully landscaped and maintained parkland - with something here for everyone! - free bbq facilities, gazebos, under-shelter playground, various exercise equipment, walking tracks, sporting oval with cricket practice nets, a lake with many and varied bird life -
and a cache or two (or four)!
It also has toilets, is on-lead dog friendly and has plenty of parking.