Auckland Police are calling for the woman who had her skirt lifted up by a man on Mission Bay beach during the weekend to come forward.
A 48-year-old man was arrested in relation to the incident which was reported to the police by a witness, a spokesperson said.
Police would like to speak to the victim of the incident and are calling for her to come forward.
"The incident occurred at around 1.45pm [on Saturday] and involved a man, wearing a large piece of fabric draped over his body," a police spokesperson said.
"The man has approached a woman who was lying on the beach, and lifted her dress with a walking crutch.