Police are investigating an alleged obscene exposure incident at Narrawallee Beach.
Just before 6pm last Sunday, a 28 year old woman was walking her dog in the off leash area, when she saw a man expose himself and perform a sexual act in front of her.
The man is described as being of Caucasian in appearance, aged between 25 and 30 years old, about 170cm-175cm tall, of thin build and with short brown hair.
At the time, he was wearing beige shorts and a white t-shirt and was with a cream Labrador.
Anyone with information is being asked to contact Ulladulla Police or Crime Stoppers on 1800 333 000.
Image: NSW Police