A tourist driver is facing two charges of careless driving causing injury after a head-on crash on the Glenorchy-Paradise Rd near Queenstown.

Sergeant Keith Newell, of Queenstown, said the 45-year-old was allegedly driving his rental van around a bend on the wrong side of the road when it collided with an oncoming car at 11.20am yesterday.

The driver of the car, a 45-year-old man from Queenstown, suffered cuts and bruises.

One of the van's four occupants, a 15-year-old boy, was knocked out and taken to Lakes District Hospital.

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The crash occurred on the unsealed section of the road, Sgt Newell said.

He would not provide the tourist's nationality.

The man is to appear in the Queenstown District Court on February 9.