The bach fire on Nelson’s Boulder Bank.
Thick black smoke can be seen from bach fire on Nelson’s Boulder Bank Track.
A Fire and Emergency NZ spokeswoman said they responded to reports of a fire on the track, about 11.40am on Wednesday.
Two fire trucks were at the scene where a bach was on fire, she said.
It was “well involved”.
Crews were working to extinguish the blaze, she said. Coastguard also attended.