Toshichi Onsen Saiunso
藤七温泉 彩雲荘39°57′ N 140°52′ ERyokan¥¥¥15,100, about CAD 136 or USD 95 (October 2026 rates)Seasonal
Toshichi Onsen Saiunso suits hikers and onsen fans who want a milky mixed open-air bath at 1,400 metres. The trade-off is a plain mountain inn that only opens from late April to late October.
Wildlife notice
Iwate, Aomori and Akita keep bear warnings in force through the autumn
Iwate has had a bear warning in force since 22 April 2026 after sightings ran far above the usual level, Aomori's warning runs from 20 April to 30 November 2026, and Akita's advisory covers October. Ride forest roads in daylight, carry a bell and keep to busier roads at dawn and dusk. Each prefecture's page lists the current sightings.
Checked 2026-10-11 · pref.iwate.jp
Road closure
The Hachimantai Jukai Line stays shut between Horaikyo and the Matsukawa gate
Iwate Prefecture closed the Jukai Line, prefectural road 318, from Horaikyo to the Matsukawa gate at 17:00 on 3 July 2024 after a landslide caved the road in, and it lists the closure as indefinite. The Hachimantai city tourism association expects the road to reopen after the snow melts in spring 2027. The open section from Horaikyo up to the Akita border closes every night from 17:00 on 16 October to 08:30 on 4 November 2026. Last winter Iwate shut the whole line from Kitanomata to Matsukawa Onsen from 4 November 2025 to 24 April 2026.
Checked 2026-10-11 · douro.com
Road closure
The Hachimantai Aspite Line closes every night until 4 November
Iwate closes the Aspite Line, prefectural road 23, from Midorigaoka to Mikaeri Pass on the Akita border every night from 17:00 on 16 October to 08:30 on 4 November 2026, since ice and snow can settle on the road overnight. Akita closes its side the same way, and a sudden change in the weather can shut the road in daytime too. Last winter the Iwate side closed from 17:00 on 4 November 2025 to 10:00 on 15 April 2026. The prefecture has yet to post its winter dates for 2026/27.
Checked 2026-10-11 · douro.com
From
¥15,100a night
Rakuten Travel listed the two-meal standard plan from ¥15,100 a person for two sharing for the 2026 season, 30 April to 31 October. Rates for 2027 were not posted on 11 October 2026.
Guests
2 guests
You book and pay on the booking site's own secure checkout, and we never see your card.
- Meals
- Dinner from 18:00 and breakfast from 7:00, both buffets of local mountain food
- Rooms
- 26
- Onsen
- Shared baths
- Best for
- Hikers, onsen lovers
Paid links. We may earn a commission when you book through these links, and the price you pay stays the same. How we earn
Toshichi Onsen Saiunso
¥15,100 a night
Saiunso is the only inn at Toshichi Onsen, high on the Hachimantai plateau, and it calls itself the highest onsen in Tohoku at 1,400 metres. Its sulphur spring comes out at 91°C and fills every tub with no dilution or recirculation. Grey mud on the pool floors makes a natural face pack. The big mixed open-air bath turns women-only from 19:30 to 20:30, and women can bathe there any time in a large wrap towel from the front desk or their own bathing wrap. Overnight guests also get their own open-air pools facing Mt. Iwate.
Rooms are plain six-mat tatami rooms, and the 20 in the main building have no toilet. Power comes from the inn's own generator and there is no landline, so mobile signal depends on where you stand. Dinner and breakfast are buffets of local mountain food.
The Aspite Line and the Jukai Line close from November to late April, which is why the inn shuts for winter. The Jukai Line between Horaikyo and Matsukawa Onsen is closed by a road collapse with no reopening date, so drive in by the Aspite Line. Bus riders can ask for a free pick-up from the Hachimantai summit bus stop with three days' notice. There is no fuel nearby, so fill up first.
Highlights
- The inn counts itself Tohoku's highest onsen at 1,400 metres
- Sulphur water leaves the source at 91°C
- Guest-only open-air baths face Mt. Iwate
- Mud from the pool floor works as a face pack
The essentials
- Kind
- Ryokan
- From
- ¥15,100 per person (2026), about CAD 136 or USD 95 (October 2026 rates)
- Price
- ¥¥
- Prices
- Rakuten Travel listed the two-meal standard plan from ¥15,100 a person for two sharing for the 2026 season, 30 April to 31 October. Rates for 2027 were not posted on 11 October 2026.
- Meals
- Dinner from 18:00 and breakfast from 7:00, both buffets of local mountain food; rice balls for early starts on request.
- Rooms
- 26
- Amenities
- Mixed open air bath, Women only open air bath, Guest only open air baths, Canteen, Shop, Massage, Free parking
- Best for
- hikers, onsen lovers, summer and autumn trips
- Website
- Official site
- Shuttle
- Free pick-up from the Hachimantai summit bus stop for guests arriving by route bus, booked at least three days ahead.
- Baths
- Shared baths, fed by a hot spring
Worth knowing
- Take off jewellery before you bathe, because the acidic water can discolour it.
- Day visitors pay ¥700 an adult between 8:00 and 17:00.
Quick answers about Toshichi Onsen Saiunsoよくある質問
How much does Toshichi Onsen Saiunso cost?
Prices at Toshichi Onsen Saiunso start at ¥15,100 per person (2026), about CAD 136 or USD 95 (October 2026 rates).
Is Toshichi Onsen Saiunso open all year?
Toshichi Onsen Saiunso opens for part of the year. Open from late April to late October; Rakuten Travel plans for 2026 ran from 30 April to 31 October. The inn closes for winter while the Aspite and Jukai Lines are shut from November to late April.
Are meals included at Toshichi Onsen Saiunso?
Toshichi Onsen Saiunso: Dinner from 18:00 and breakfast from 7:00, both buffets of local mountain food; rice balls for early starts on request.
What does Toshichi Onsen Saiunso have?
Toshichi Onsen Saiunso lists mixed open air bath, women only open air bath, guest only open air baths, canteen, shop, massage, free parking.
Within 12 km
