A 21-year-old quadbike rider was flown to hospital by helicopter after being catapulted over the handle bars on a Northland beach.
Dargaville police Acting Senior Sergeant Maria Nordstrom said the crash happened near the first stream south of Glinks Gully, on the west coast, at 2.50pm on Sunday.
The sea was rough and there were lots of debris that had washed up on to the beach at the time.
Mrs Nordstrom said the rider went across the stream and hit a pile of debris and was thrown over the handle bars and landed on his shoulder.
His shoes and helmet came off in the impact.
Northland St John manager Tony Devanney said initially, St John members from Dargaville helped the injured man and then passed him over to the helicopter medical team. He was flown to Whangarei Hospital with moderate shoulder and pelvis injuries and a blood test was taken.
It is not the first incident involving a motorbike on a beach this month.
Birthday celebrations turned sour after a 15-year-old boy fell off a motorcycle and its gear lever became embedded in his calf muscle on Ruakaka Beach. Firefighters erected a sand wall around the injured teenager for protection against high tide while St John paramedics attended to him.
The firefighters then cut the lever using the cutting device known as jaws of life, used to extricate people from cars after accidents.
Once the gear lever was cut from the motorcycle, he was carried to a waiting ambulance and taken on to hospital.