Two tourists were assaulted at a campground in Raglan last night.
A woman punched a French woman in the jaw, knocking her to the ground, and shortly afterwards punched an Australian woman in the nose, making it bleed.
Police said the fight broke out after a man and woman were told to leave the Kapua Camping Ground about 6pm.
Senior Sergeant Gael Mockford of Hamilton police said witnesses gave a detailed description of the offender's vehicle.
A 23-year-old woman was arrested and will appear in Hamilton District Court later this month.