Hoons on quad bikes are a tragedy waiting to happen, according to concerned Castlecliff residents.
Lynne Douglas from the Castlecliff Residents' Association said some riders went too fast and were dangerous on their quad bikes.
"Many a person has been going for a walk through the sand dunes and they whip past," she said. "It is becoming more of a problem with the minority of them that want to hoon around and rip up the place.
"We certainly don't want to see any tragedies out here."
She said she had seen a man driving a quad bike with one hand while holding a toddler with the other.