The fire is said to have burned through multiple trees in the orchard.
Fire and Emergency NZ is treating the fire as suspicious.
Pauanui is a coastal beach town approximately 45 minutes by car from Thames.
It serves as a popular holiday town and beach resort on the Coromandel Peninsula.
There is a residing population of around 1,000 people, with numbers swelling to around 15,000 in summer.
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