Unofficial, just be discrete. Not a problem when it's quiet, but be discrete at weekends. Swimming naked is fine, but just don't flaunt it. According to the local council, it's been years since anyone had any issue with nudity here. Some seclusion in sand dunes. A bit of a walk unless you park your 4WD on the beach. Can also path at skate park on road to Kurnell (at roundabout) and walk along path to beach. Be cautious about currents. Nice place for a long nude walk after dark from skate park to beach and along sand.