Kanko-ken (sightseeing areas) are areas (each of which is located in one prefecture or multiple prefectures in Japan), being organized for tourism; they are designated by the Japan Tourism Agency, an extra-ministerial bureau of the Ministry of Land, Infrastructure, Transport and Tourism of Japan, to develop sightseeing areas in order to distinguish Japan as a tourism nation and promote tourists' visits and extended stays.
観光圏（かんこうけん）は日本の一つの都道府県または複数の都道府県にまたがった地域を観光のためにまとめたもので、日本を観光立国とする実現に向けての整備をし、観光旅客の来訪および長期の滞在を促進するために日本の国土交通省の外局である観光庁に認定された地域。