Look carefully in the Lamandra Bushes as you step on the 17th tee and you will see this frog. Look really hard as they only grow to 30mm. Many I have seen are about 5mm (babies we guess). This exceptional photo was taken by lady member Marg Cook and has been magnified. START LOOKING.
You get varying shades of green or pale brown depending on the resting site, but I think you are right that it is an eastern dwarf tree frog. We will have to camp out there to get its sound!!