The Birthplace of Japan’s Nature Conservation Movement
Situated in the central area of Japan’s main island of Honshu, around 150 kilometers north of Tokyo, Oze National Park is one of the country’s most celebrated natural escapes. Spanning 372 square kilometers across Fukushima, Tochigi, Gunma and Niigata prefectures, it was designated Japan’s 29th national park when it officially opened on August 30, 2007 — the first new national park to open in 20 years.
The park’s crown jewel is the Ozegahara Marshland, Japan’s most extensive mountain wetland, where wooden boardwalks wind through seasonal blooms and sweeping alpine scenery. At the park’s center stands Mount Hiuchigatake, an extinct volcano and the region’s tallest peak, overlooking both Lake Ozenuma and the Ozegahara Marsh.
Oze National Park is known as the birthplace of nature conservation in Japan. After World War II, plans to build hydroelectric power plants threatened to flood much of the area, but a coalition of local conservationists and business owners successfully halted those developments. The park has been a symbol of grassroots environmental protection ever since.
Best Times To Visit Oze National Park
The park draws legions of hikers during the summer and fall, roughly from June to October, but is covered in deep snow from November through April. Each season within the open months brings its own spectacle:
Late May to early June is arguably the most iconic time to visit, when snow-white skunk cabbages bloom across the marshlands and the landscape feels newly alive after months under snow. Late July to early August sees the yellow alpine lilies come into bloom, and autumn — particularly late September to early October — transforms the grasses of Ozegahara into brilliant shades of gold and red. Weekday visits are strongly recommended, as the park’s fragile wetland ecosystem is vulnerable to overcrowding.