No, it is not a Moreton Bay fig that has caused this rock to split. The references to Moreton Bay that you find in the area refer to the shorthorn cattle stud that has been in the area for over 60 years.
There is a parking bay near by suitable for larger vehicles, but please keep geokiddies in the vehicle as the cache is close to the road.
Congratulations to Tremco on achieving their very first FTF. They collected a magnetic cache holder for this achievement.