A 16-year-old male tramper has been taken to Taranaki Base Hospital by helicopter after falling sick while hiking on the Stoney River Track with a companion.
The duo were believed to be two to three hours into the walk when one of them alerted St John's for help.
The Taranaki Community Trust Rescue Helicopter was dispatched and the boys were then winched to safety.
New Plymouth senior sergeant Thomas McIntyre said the teenagers decided to cancel their tramp after one of them came down with a vomiting bug last night.
Mr McIntyre said the teenagers had tried walking out on "their own steam" but decided to call for help instead.
"They have made a good choice to have cancelled the trip," Mr McIntyre said.
The sick tramper remains in hospital for observation.
Taranaki Daily News