Did you happen to see any dark blotches in the groin, which are usually set against a yellowish background? Even though I can't see this distinctive feature in the photo, I think this specimen is Litoria verreauxii rather than the similar looking Litoria jervisiensis, which is also found in the area. The primary reason is the complete lack of any yellow colouration in the inside of the arms, thighs, fingers or toes, typical of the latter.