–Designated by the Minister of the Environment and administered directly by the nation.
–Definition: They are the places where the provision of information and related facilities are maintained to enable visitors to appreciate the natural beauty as well as to preserve the excellent natural views representing Japan.
–The number: 34 as of today.
–The first designated three: Setouchi, Unzen(today’s Unzen and Amakusa), and Kirishima (today’s Kirishima and Kinko Bay) in 1934
–The latest designated Park: Amami Island Group in 2017.

Ministry of the Environment National Parks of Japan https://www.env.go.jp/en/nature/nps/park/index.html