prefectural natural park
A natural park designated and managed by a prefectural government, distinct from national parks.
You can enjoy camping and hiking in this prefectural natural park.
国立公園 is a national park designated by the national government, while 県立自然公園 is a prefectural natural park managed at the prefectural level.
prefectural natural park
Compound of 県立 (prefectural) + 自然 (nature) + 公園 (park).