Where was Nate and Hayes filmed?
1983 film by Ferdinand Fairfax
Nate and Hayes (1983) was filmed in Rotorua, Bay of Islands and Urupukapuka Island, 3 places named in its Wikipedia article, in New Zealand. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 3 places. Each links to the sentence that says so.
Also shot in these places
Pete's DragonFantasy film2016


