3   kil omet res ▁south - west ▁of ▁the ▁Sydney ▁central ▁business ▁district , ▁in ▁the ▁state ▁of ▁New ▁South ▁Wales , ▁Australia . ▁It ▁is ▁a ▁part ▁of ▁South - western ▁Sydney ▁region ▁. ▁Pic nic ▁Point ▁is ▁a ▁resident ial ▁sub urb ▁on ▁the ▁northern ▁bank ▁of ▁the ▁Georges ▁River . ▁Loc ated ▁within ▁Pic nic ▁Point ▁is ▁Y er amba ▁L ago on ▁which ▁is ▁the ▁largest ▁tract ▁of ▁National ▁Park ▁within ▁the ▁Can ter bury ▁- ▁Bank st own ▁Council , ▁it ▁is ▁home ▁to ▁numerous ▁species ▁of ▁native ▁fa una ▁and ▁fl ora . ▁ ▁History ▁ ▁Pic nic ▁Point ▁was ▁the ▁name ▁given ▁to ▁the ▁ge ographical ▁feature ▁on ▁the ▁Georges ▁River . ▁The ▁sub urb ▁was ▁originally ▁part ▁of ▁East ▁Hills , ▁which ▁stretch ed ▁south ▁from ▁Bank st own ▁to ▁the ▁river ▁and ▁east ▁to ▁The ▁River ▁Road . ▁ ▁During ▁World ▁War ▁II , ▁Pic nic ▁Point ▁National ▁Park ▁was ▁the ▁location ▁of ▁a ▁remote ▁receiving ▁station ▁and ▁operations ▁b unker ▁that ▁was ▁owned ▁and ▁operated ▁by ▁the ▁RA AF . ▁This ▁facility ▁was ▁used ▁in ▁conj unction ▁with ▁two ▁other ▁facilities , ▁one ▁of ▁them ▁located ▁in ▁Bank st own , ▁the ▁Bank st own ▁B unker , ▁which ▁was ▁RA AF ▁headquarters ▁at ▁the ▁time ▁and ▁the ▁other ▁in ▁Bass ▁Hill ▁which ▁was ▁a ▁transm itting ▁station ▁in ▁John ston ▁Road . ▁The ▁location ▁of ▁the ▁remote ▁receiving ▁station ▁in ▁Pic nic ▁Point ▁is ▁now ▁located ▁under ▁the ▁Trans grid ▁South