Senjogahara Marshland
Open by month
Open in January. No seasonal closure recorded. New Year (Dec 29 – Jan 3): open.
Open in February. No seasonal closure recorded.
Open in March. No seasonal closure recorded.
Open in April. No seasonal closure recorded.
Open in May. No seasonal closure recorded.
Open in June. No seasonal closure recorded.
Open in July — at its best. Hike from Yumoto past Yudaki Falls to Ryuzu Falls (about 2.5 hours).
Open in August. No seasonal closure recorded.
Open in September. No seasonal closure recorded.
Open in October — at its best. Hike from Yumoto past Yudaki Falls to Ryuzu Falls (about 2.5 hours).
Open in November. No seasonal closure recorded.
Open in December. No seasonal closure recorded. New Year (Dec 29 – Jan 3): open.
Checked against the official site on 2026-10-12.
A 400-hectare high marsh in Oku-Nikko under Mt. Nantai, with about 350 plant species. Boardwalks make an easy 2-hour hike.
Nikko National Park
Nearby
- Ryuzu Falls ≈ 15 min by car
- Yudaki Falls ≈ 15 min by car
- Okunikko Yumoto Onsen ≈ 20 min by car
- Lake Chuzenji ≈ 20 min by car
- Kegon Falls ≈ 20 min by car
Travel times are rough estimates by car.
- Best time
- July, October — Hike from Yumoto past Yudaki Falls to Ryuzu Falls (about 2.5 hours)
- Getting there
- About 70 min by Tobu bus (for Yumoto Onsen) from JR Nikko or Tobu-Nikko Sta. to Sanbonmatsu or Akanuma
- Fee
- Free
- Time needed
- 2 h 30 min
Checked against the official Japanese website on 2026-10-12. Report outdated info