Where was Frozen Planet filmed?

2011 British documentary series

Frozen Planet (2011–) was filmed in Hay River and Hay River, 2 places named in its Wikipedia article's Filming section, in Canada. 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.

See them on the map → Wikipedia Source data

Places per Wikipedia's Filming section

Wikipedia’s Filming section names 2 places. Each links to the sentence that says so.