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Ozegahara is Japan's largest mountain wetlands spanning over Katashina in Gunma, Minami-aizu and Hinoemata in Fukushima, Nikko in Tochigi and Uonuma in Niigata. Ozegahara, which is a popular hiking spot, is protected as the Oze National Park and includes many mountains such as one of Japan's top 100 mountains Mt. Shibutsu, and Mt. Hiuchigatake with over 2,000 meters elevation, as well as rare alpine plants that bloom in the wetlands such as the beautiful pure white Asian skunk-cabbage and Nikko-kisuge.
- Katashina, Tone-gun, Gunma
- Contact No.
- From JR Numata Station, take bus for 120 min to Hatomachi-toge Renraku-jo, take another bus to Hatomachi-toge Kyukei-jo and walk 60 min to Yamanohana Entrance.
- Opening Hours / Holidays
- Entry is not possible from November to April due to closed roads during winter.
- Official Website
- Time Required
- 1 day
※ Some information is displayed in Japanese and machine-translated English, which may not be accurate.
For the latest information, please check the official website for each spot.
Enjoy the Seasonal Beauty of Ozegahara
The 37,000 hectare Oze National Park is also known as one of Japan's top plant habitats, where Asian skunk-cabbage and marigold bloom during spring, Nikko-kisuge in summer, and in autumn, the changing color of the wetland plants amuse the eyes of hikers.
Rare Wetland Plants Blossom at Ozenuma
Ozenuma swamp, located in between Gunma and Fukushima prefectures, is a lake that is believed to have formed from the eruption of Mt. Hiuchigatake and has a wooden walkway all around its shore. Around the Ozenuma swamp, you can observe many rare plant species and the most recommended time to visit is mid-June when the Asian skunk-cabbage is blooming or mid-September when the leaves start changing color.
View from the Top of Mt. Shibutsu
The top of Mt. Shibutsu inside Oze National Park is a popular spot, from which you can overlook the entire Ozegahara area. From Hatomachi-toge, one of the trail entrances, to Mt. Shibutsu it is only about three hours to get to the top even at a slow pace, so you should definitely try climbing Mt. Shibutsu and see the gorgeous views. (Entry period to mountain is limited.)
Spend the Night at Ozegahara
At Oze National Park, you can stay at a mountain lodge, so you can spend the whole day exploring Ozegahara. Watching the sunset from Mt. Hiuchigatake, seeing the wetlands illuminated by the evening light and the night sky filled with stars is something you can only do if you spend the night here.