Where was Kamen Rider (1979–) filmed?

1979 TV series

Kamen Rider (1979–) was filmed in 行川アイランド, 1 place named in its Japanese Wikipedia’s その他 section, in Japan. 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.

Part of the Kamen Rider Series

See them on the map → Wikipedia Source data

Places per Japanese Wikipedia's その他 section

Japanese Wikipedia’s その他 section names 1 place. Each links to the sentence that says so.

Landscapes & nature 行川アイランド Japan