Ryuokyo Gorge Hiking Guide – Nikko, Japan

Ryuokyo (龍王峡, Dragon King Gorge) is a dramatic volcanic ravine in northern Nikko, where the Kinugawa River has carved 22-million-year-old rock into white, blue and purple cliffs. A mostly flat 6 km trail links Ryuokyo Station to Kawaji Onsen in about three hours, past waterfalls, deep green pools and the popular Musasabi flying-squirrel bridge.

Ryuokyo Gorge at a Glance

Distance	~6 km one way
Duration	~3 hours
Difficulty	Easy — Grade I (mostly flat; some stairs and uneven path)
Start	Ryuokyo Station (Yagan Railway Aizu-Kinugawa Line)
End	Kawaji Yumoto Station / Kawaji Onsen
Highlights	Nijimi Falls, Musasabi Bridge, dragon-shaped cliffs
Best Season	Spring to late autumn (famous autumn leaves)
Access	Northern Nikko — a train day-trip, not the standard trailhead shuttle

Base yourself at Earth Hostel Nikko Riverhouse — for Ryuokyo we drop you at Shimo-goshiro Station for the train north, and collect you in the evening. A riverside hostel on the Kurokawa, in the mountains of southern Nikko.

A Dragon’s Gorge in Northern Nikko

Ryuokyo (龍王峡, Dragon King Gorge) lies in northern Nikko, in the Kinugawa (鬼怒川, Kinu River) valley between Kinugawa Onsen and Kawaji Onsen. Around 22 million years ago, undersea volcanic eruptions laid down the rock here; the river has since cut it into a 3 km ravine of white, blue and purple cliffs — named in 1950 for the way the stone seems to writhe like a dragon. It is one of more than two dozen routes covered in our Nikko hiking guide, and the only one you reach by train rather than the hostel shuttle. The trail divides into three colour-named sections — Hakuryu (white), Seiryu (blue) and Shiryu (purple) — each a different volcanic rock.

Getting There — a Train Day-Trip

From Earth Hostel: Ryuokyo is a northern-Nikko train excursion, so it works differently from our trailhead hikes. We drop you at Shimo-goshiro Station on the Tobu Nikko line; you take the train through Shimo-Imaichi (central Nikko), change to the Kinugawa line, and ride up to Ryuokyo Station. Coming back, ride to Kawaji Yumoto and call us before you board at Kawaji Yumoto so we can meet you at Shimo-goshiro without a wait.

By train (general): Ryuokyo Station sits on the Yagan Railway Aizu-Kinugawa Line, which through-runs from the Tobu Kinugawa line — the trailhead is right at the station.

The Trail — Step by Step

Ryuokyo Station to Nijimi Falls: From the station, descend the stairs about 10 minutes to Nijimi Bridge (虹見の滝, Nijimi Falls — “rainbow-view falls,” which can throw a rainbow in sunlight). This is the white-rock Hakuryu section, the most dramatic stretch, with Goryuo Shrine perched above the falls.

Musasabi Bridge and the blue gorge: The trail crosses the Kinugawa and works upstream into the Seiryu (blue) section — columnar rock, the wide “Daikan” viewpoint, and Musasabi Bridge, the classic photo spot looking up and down the gorge.

Upstream to Kawaji Onsen: The path eases into the purple Shiryu section and follows the river out to Kawaji Onsen, ending near Kawaji Yumoto Station. Most of the route is flat with a gentle grade until the Kawaji end.

What to See

• Nijimi Falls and Tategoto Falls in the white-rock gorge
• The three colour-named sections — white, blue and purple volcanic rock
• Musasabi Bridge, with views both up and down the ravine
• Deep green river pools and overhanging stone
• Goryuo Shrine, guardian of the Kinugawa and Kawaji
• Autumn leaves (late October–early November) — one of northern Nikko’s best

Difficulty & Who It’s For

An easy, mostly flat Grade I walk — fine for families and casual hikers, with a few stairs near the station and some uneven, occasionally slippery path. The main caution is mountain leeches in wet months (roughly June–October): don’t walk it in sandals or bare feet, and cover up after rain.

What to Bring

• Closed shoes — trail shoes are plenty
• Water and a snack
• Leech precautions in summer (cover ankles; avoid sandals June–October)
• Cash for trains and the Kawaji onsen
• Offline map — phone signal is patchy in the gorge
• A layer; the gorge holds the cool

Best Season & Conditions

Spring	Fresh green; mizubasho and yashio azalea late Apr–mid May	Lovely and quiet
Summer	Lush and cool in the gorge	Watch for leeches after rain
Autumn	Koyo late Oct–early Nov	The star season — go early to beat crowds
Winter	Cold, can be icy; some sections limited	Off-season

Nearby After the Hike

• Kawaji Onsen (Yakushi-no-yu rock bath): right at the trail’s end — a hot soak before the train back.
• Kinugawa Onsen: a few stops down the line, northern Nikko’s big onsen town.
• Earth Hostel Nikko Riverhouse: ride back to Shimo-goshiro for our evening pickup, then a swim in the Kurokawa, the open-air lounge, fireflies and the Milky Way after dark.

Frequently Asked Questions

Is the Ryuokyo trail open year-round?

The path is open through the year, but it’s at its best spring to late autumn; winter can be icy and some stretches are limited.

How do I get to Ryuokyo from Nikko?

By train. From Earth Hostel we drop you at Shimo-goshiro Station; you change at Shimo-Imaichi onto the Kinugawa line and ride to Ryuokyo Station, where the trail begins.

Is Ryuokyo suitable for beginners?

Yes — it’s an easy, mostly flat Grade I walk, though watch your footing on the stairs and after rain.

Are there leeches on the trail?

In wet months (about June–October) yes; cover your ankles and avoid sandals or bare feet.

Can I visit Ryuokyo as a day trip from Tokyo?

Yes — it’s reachable via the Tobu line to the Kinugawa area and the Yagan Railway to Ryuokyo Station.

Plan Your Trip from Earth Hostel

Earth Hostel Nikko Riverhouse is a riverside hostel on the Kurokawa, in the mountains of southern Nikko. Ryuokyo is one of our favourite northern-Nikko excursions: we drop you at Shimo-goshiro Station for the train up, and collect you in the evening when you call from Kawaji Yumoto. No curfew (music off 10 PM), so you can soak at Kawaji and ride back at your own pace. See our rooms and access pages to plan the trip.

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