Kodi Goodman, his partner and two young children were heading back from a trip to the beach when they spotted the Maui campervan heading in the same direction but on the right-hand side of the centre line.
A front-seat passenger in the car, who did not want to be named, said they followed the vehicle for 45 minutes, keeping well back fearing there would be carnage if a vehicle came from the opposite direction.
"We [were] especially worried that if a car came around a sharp corner there would be a terrible accident and we would have been caught up in it."
Goodman was stunned the campervan couple, in their 30s, moved to the left and carried on as if nothing untoward had happened.
A Southland family trailed a motorhome driving on the wrong side of the Tokanui-Gorge Rd Highway for nearly 45 minutes. Photo / Google maps
The Southland couple were gobsmacked by the shocking driving.
"It was our first swim of the summer and it could have easily ended so badly," said the mum-of-two.
She said in hindsight she wonders if they should have waved down the vehicle and taken the keys from the ignition but at the time they were shocked and concerned for their own safety.
Tourism Holdings Ltd, which rented the filmed campervan, said the driver had been contacted and "reminded about safe driving in New Zealand, especially staying left", Fairfax reported.
Curio Bay to Bluff is a 104km journey along the Tokanui-Gorge Rd Highway taking about 1.5 hours.
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