An American couple holidaying on the Coromandel Peninsula froze in their seats as a man smashed the windows of their van with a crowbar after an argument they had with him on a beach.
Felizia Graye and her partner, Shenandoah Forest, who are visiting from Hawaii, say the horror attack on Monday left them covered in shattered glass and completely "freaked out".
Ms Graye said the drama unfolded after children on a quad bike began circling where they were sitting at Kennedy Bay, about 15km northeast of Coromandel. As the bike got closer they waved at them to stop, and after she threatened to call police the children went away. But a short time later "a very upset man" arrived.
"He appeared to be really angry about us talking to the kids and started screaming at us and said 'they are just having fun'."
Ms Graye said the pair left the beach and began driving north towards Tuateawa, and stopped on the side of the road. It was when they looked in the rear-vision and saw the man walking towards them with what appeared to be a metal pipe that they realised they had been followed.