Where was Melgar es Arequipa, Campeones del 81 filmed?
2023 film directed by Wildo Ontiveros Aparicio
Melgar es Arequipa, Campeones del 81 (2023) was filmed in Camaná, Mollendo and Caravelí, 3 places named in its Wikipedia article's Production section, in Peru. 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 Production section
Wikipedia’s Production section names 3 places. Each links to the sentence that says so.

