100 things to know before you travel in Japan

There are 28 National Parks in Japan.
Rishiri-Rebun-Sarobetsu National Park
Shiretoko National Park
Akan National Park
Kushiro Shitsugen National Park
Daisetsuzan National Park
Shikotsu-Toya National Park
Towada-Hachimantai National Park
Rikuchu-Kaigan National Park
Bandai-Asahi National Park
Nikko National Park
Joshin'etsu Kogen National Park
Chichibu-Tama-Kai National Park
Ogasawara National Park
Fuji-Hakone-Izu National Park
Chubu Sangaku National Park
Hakusan National Park
Minami Alps National Park
Ise-Shima National Park
Yoshino-Kumano National Park
San'in Kaigan National Park
Setonaikai National Park
Daisen-Oki National Park
Ashizuri-Uwakai National Park
Saikai National Park
Unzen-Amakusa National Park
Aso-Kuju National Park
http://www.env.go.jp/en/np/index.html