Shuzenji Onsen Guide 2026: Izu's Oldest Hot-Spring Town

The Izu Peninsula is really two places in one — a busy onsen coast that day-trippers from Tokyo know well, and a quiet green interior that most foreign visitors never reach. Shuzenji sits in that interior, the oldest hot-spring town in Izu, where a ninth-century temple, a red bridge and a bamboo-lined path follow the Katsura river through the trees. It is small, walkable and made for slowing down, and it pairs naturally with the wasabi valleys and the great Mishima shrine nearby. This guide covers the town itself, the best places to stay and bathe, what to do in a day or two, and how to get there. It is written for couples and anyone who would rather soak and stroll than sightsee hard.

At a glance

• What it is: the oldest onsen town in Izu, in the peninsula’s green interior
• The setting: a temple, a red bridge and a bamboo path along the Katsura river
• How long: one or two nights; an overnight, not a day trip
• Don’t miss: the bamboo path at dawn, Shuzen-ji temple, grate-your-own wasabi at Joren Falls
• Cost markers: Shuzen-ji treasure hall ~¥300; Mishima Skywalk ~¥1,100; Joren Falls wasabi-don ~¥1,000–1,400 (approx., 2026)
• Getting there: Shuzenji Station on the Izuhakone line, then a short bus; ~2 hours from Tokyo via Mishima

The town: temple, bridge and bamboo

Shuzenji is built along a short stretch of the Katsura river, and its landmarks sit within a few minutes’ walk of one another. Shuzen-ji temple, which gives the town its name, was founded by legend in 807 by Kobo Daishi, the monk also credited with revealing the town’s first hot spring; its hand-washing basin out front is fed by hot spring rather than cold water. The temple has a dark history too — the second Kamakura shogun, Minamoto no Yoriie, was murdered here in 1204. Grounds are free; the small treasure hall of Buddhist art is about ¥300 (approx., 2026).

A short walk away, in the middle of the river, stands Tokko-no-yu, the symbol of the town: a small bath pavilion on a rock marking the spot where, by legend, Kobo Daishi struck the stone with his tokko vajra and a hot spring gushed out. It was for centuries an open-air bath, but is now a landmark and footbath only — no longer a place to soak, despite what some older guides say. It looks best in the early morning when the town is quiet and the red Katsura bridge frames it.

The prettiest corner is the Chikurin-no-komichi, a short, beautifully kept walking path along the river roofed by tall bamboo, with a large round bamboo bench at its centre where you can lie back and look up at the canopy. It is lit softly at night and is short enough to walk twice, in both directions. Half an hour here after a bath is the essence of Shuzenji.

Where to stay and bathe

Shuzenji’s reputation rests partly on its ryokan. Asaba is the famous one: a seventeen-room house run by the same family for centuries and a member of Relais & Châteaux, built around a roofed Noh stage that stands across its central pond from the guest wings, with performances held there on occasion. Rooms look onto the water and the wooded hill, the baths draw on Shuzenji’s own source, and dinner is a refined multi-course kaiseki. It is one of the most quietly celebrated ryokan in Japan; book well ahead and confirm rates directly, as they sit at the high end.

For a more accessible but still historic stay, Arai Ryokan, dating from 1872, is a registered cultural property with handsome wooden bathhouses, and it offers day-use bathing (around ¥2,500) if you are not staying the night. Between these and the town’s smaller inns, Shuzenji works at a range of budgets, but the point everywhere is the same: bathe in the evening and again before breakfast, when the water and the town are quietest.

Beyond the town: wasabi and Mishima

The interior of Izu is one of Japan’s great wasabi regions, grown in the cold, clear spring water the plant demands, and the best place to taste it is Joren Falls, about 25 minutes south of Shuzenji by car. A 25-metre waterfall tumbles over a basalt cliff, surrounded by terraced wasabi beds; the local dish at the on-site restaurant is wasabi-don — a bowl of warm rice with bonito flakes and a knob of fresh wasabi root that you grate yourself at the table, the heat clean and green rather than fierce (around ¥1,000–1,400, approx., 2026). A flight of stone steps leads down to the falls.

To the north, the gateway town of Mishima is worth building into the trip. Mishima Taisha is the foremost shrine of Izu, in a wooded precinct in the town centre, where the exiled Minamoto no Yoritomo prayed before the campaign that founded the Kamakura shogunate. Nearby, the Mishima Skywalk is Japan’s longest pedestrian suspension bridge — a 400-metre span strung across a valley with Mount Fuji and Suruga Bay framed at the far end on a clear day (admission about ¥1,100 in 2026, with hydrangeas in early summer). And the great fishing port of Numazu, a short hop west, is the place for a fresh seafood lunch before the drive south into the hills.

Our Izu Shuzenji onsen itinerary threads Mishima, Numazu, the town and the wasabi valley into two unhurried days with a ryokan night at the centre.

Practical notes

Getting there. Take the shinkansen to Mishima (about 50 minutes from Tokyo), then the Izuhakone Sunzu line to Shuzenji Station (about 35 minutes), and a short bus or taxi into the onsen town, which is a little uphill from the station. A car is useful for Joren Falls and the wider interior but not essential for the town itself.

How long to stay. One night is enough for a satisfying taste — an evening soak, a kaiseki dinner, the bamboo path at dusk and again at dawn. Two nights let you add the wasabi valley, Mishima and Numazu without rushing.

Onsen etiquette. Wash thoroughly at the shower stations before entering any communal bath, tie up long hair, and keep your towel out of the water. Tattoos can be an issue at some baths; a private or in-room bath, or a ryokan with reservable family baths, avoids any awkwardness — ask when booking.

When to go. Shuzenji is a year-round onsen town. The maples around the temple and river turn in November, and an evening light-up sometimes runs then; early summer brings hydrangeas, including at the Mishima Skywalk. Note that Japan’s international departure tax rises from ¥1,000 to ¥3,000 per person from July 1, 2026.

For the busier coastal side of the peninsula, see our Atami and Ito east-coast guide.

FAQ

What is Shuzenji known for? Shuzenji is the oldest hot-spring town on the Izu Peninsula, known for its ninth-century temple founded by legend by Kobo Daishi, the red Katsura bridge, the bamboo-lined riverside path (Chikurin-no-komichi), and historic ryokan such as Asaba and Arai Ryokan. It sits in the quiet green interior of Izu, away from the busy onsen coast.

Can you bathe at Tokko-no-yu in the river? No. Tokko-no-yu, the small bath pavilion on a rock in the middle of the Katsura river, is the symbol of Shuzenji, but it is now a landmark and footbath only — bathing is no longer permitted there, despite what some older guides suggest. For a full soak, use a ryokan bath or a day-use bathhouse such as Arai Ryokan.

How do I get to Shuzenji from Tokyo? Take the Tokaido shinkansen to Mishima (about 50 minutes), then the Izuhakone Sunzu line to Shuzenji Station (about 35 minutes), and a short bus or taxi into the onsen town. The whole trip takes roughly two hours.

Where can I try fresh wasabi near Shuzenji? At Joren Falls, about 25 minutes south of Shuzenji by car, where wasabi is grown in spring-fed terraces. The on-site restaurant serves wasabi-don — rice topped with bonito flakes and a knob of fresh wasabi root that you grate yourself at the table. Izu is one of Japan’s great wasabi-growing regions.

Is one night in Shuzenji enough? One night is enough for the town itself — a soak, a kaiseki dinner and the bamboo path at quiet hours. Two nights are better if you want to add the wasabi valley at Joren Falls, the shrine and suspension bridge at Mishima, and a seafood lunch at Numazu port without rushing.

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