Futoki is a 16-room inn at the very top of the stone steps of Ikaho Onsen in Gunma, beside Ikaho Shrine. It opened in November 2024 and belongs to the Oyado Tamaki Group. Before you book, three things matter: there is no large bath (private baths and in-room baths instead, plus free use of a sister inn’s bath); stays are breakfast-only by default, with an optional yakiniku dinner; and the inn has some closed days in late 2026.
Futoki in Ikaho Onsen at a glance
| Item | Official information |
|---|---|
| Address | 10 Ikaho, Ikaho-machi, Shibukawa, Gunma |
| Location | Top of the Ikaho stone steps, beside Ikaho Shrine |
| Opened | November 2024 |
| Rooms | 16, of which 9 have a private open-air bath; 7 room types |
| Check-in / out | 15:00–20:00 / 10:00 |
| Meals | Breakfast included; yakiniku dinner optional |
| Baths | No large bath; 2 private baths (fee); free use of Oyado Tamaki’s bath |
| Prices | From 15,950 yen per person with breakfast, tax included (two to a room) |
| Extra charges | Bathing tax 150 yen per person |
| Payment | At the inn |
| Language | Japanese-only website and booking page |
From the official site and booking page, read October 20, 2026.
The inn describes its style as a free stay not bound by time, with wood and Japanese design blended with modern comfort, like a country villa. Its site also tells the story of Ikaho: in 1576, Takeda Katsuyori had Sanada Masayuki develop the springs to heal soldiers wounded at the Battle of Nagashino.
Rooms and prices at Futoki
Prices on the official booking page are per person when two people share a room, with breakfast and tax included. They are “from” prices, so your dates may cost more.
| Room type | Regular plan | Last-minute plan |
|---|---|---|
| Special room with open-air bath (Shirogane spring) | 29,700 yen | 26,400 yen |
| Room with open-air bath (Kogane spring) | 27,500 yen | 26,400 yen |
| Room with open-air bath (Shirogane spring) | 27,500 yen | 26,400 yen |
| Garden room with open-air bath | 25,300 yen | 24,200 yen |
| Twin room with garden | 18,150 yen | 16,500 yen |
| Twin room | 17,050 yen | 15,400 yen |
| Double room | 15,950 yen | 14,300 yen |
Lowest listed price per person, breakfast and tax included. Official booking page, read October 20, 2026.
Every room has a shower booth, and the room page lists a TV, tea set, fridge, ReFa hair dryer, air purifier, yukata and safe. The whole inn is non-smoking with Wi-Fi. On the 3rd and 4th floors, a drinks corner by the elevator has coffee, seasonal drinks, a microwave and an ice maker.
The baths at Futoki
Which hot springs does the inn use?
Two. Kogane-no-yu, the “golden” water, is brown from its iron and flows straight from the source. Shirogane-no-yu, the “silver” water, is clear. The nine rooms with an open-air bath use one or the other, as the room names show.
How do the private baths work?
There are two private baths: Amane with the golden water and Sou with the silver water. They are open 10:00 to 22:00 and cost 3,300 yen for 50 minutes. For stays from September 1, 2026 to March 31, 2027, the inn runs a half-price offer of 1,650 yen, once per stay, booked through the official site or by phone; Saturdays, nights before holidays and December 31 to January 3 are excluded.
Can I use a large bath?
Futoki has none, but guests can use the bath at its sister inn, Oyado Tamaki, for free. It is about 320 m away, roughly four minutes on foot, and open 15:00 to 22:00, except 19:30 to 20:00 for cleaning. There is also a rooftop bar, Sora, with a footbath of golden water, where the booking page says drinks are free for staying guests; it may close in winter.
Can I bathe with a tattoo?
The official pages do not mention tattoos. The private and in-room baths are used alone, but the rule at Oyado Tamaki’s shared bath is not stated, so ask before you book. Our tattoo and onsen guide explains what to ask.
Meals at Futoki
What is the yakiniku dinner?
The inn set out to move away from the standard set ryokan dinner, so its main restaurant is a yakiniku (Japanese grill) restaurant, Kagari, on the 2nd floor. Seating is mostly private-room style, the grills are smokeless, and the beef is Akagi beef from Gunma. There are two courses, 7,480 yen and 9,900 yen, starting at 18:00, 18:30 or 19:00. If seats are free, you can add dinner when you check in, and booking a time through the official site comes with one free drink.
What is breakfast like?
Breakfast, included in every stay, is served at Minori: freshly cooked Koshihikari rice, miso soup, an onsen egg and small side dishes. Rice, miso soup and raw eggs are refillable at a self-serve corner.
Can the inn handle allergies or a special diet?
The official pages do not say. If you have an allergy or eat vegetarian, email or call the inn before you book.
Getting to Futoki
By train from Tokyo Station, take the Joetsu or Hokuriku Shinkansen to Takasaki (about 55 minutes), then the JR Agatsuma Line to Shibukawa (about 24 minutes). From Shibukawa, a taxi takes about 15 minutes, or a bus bound for Ikaho Onsen takes about 25 minutes to Ikaho Bus Terminal, then walk about 5 minutes. From Ueno, the limited express Kusatsu-Shima reaches Shibukawa in about 1 hour 45 minutes, and a JR bus bound for Kusatsu runs from Shinjuku in about 2 hours 42 minutes.
By car, the inn gives about 110 minutes from Tokyo, via the Kan-Etsu Expressway to Shibukawa-Ikaho IC and about 20 minutes more. The official pages do not mention a shuttle or parking, so ask the inn if you need either.
Children, cancellation and payment at Futoki
What do children cost?
From age 0, children pay a facility fee of 2,200 yen. From age 3, they are charged in principle the same as adults for the one-night-with-breakfast stay. The inn notes it has no yukata for small children.
What is the cancellation policy?
The booking page accepts cancellations and changes until 12:00 on the day of the stay. We could not read the fee amounts on the booking page, so check them on your plan before you confirm, or ask the inn. See our hotel cancellation guide for how fees in Japan work.
How do I pay, and what taxes apply?
The booking page lists payment at the inn; it does not say which cards are accepted. On top of the room price, Shibukawa City charges a bathing tax of 150 yen per person per night; see our onsen bathing tax guide.
What foreign guests should know before staying at Futoki
- The inn has some closed days between October and December 2026, and says they may change without notice. Check the official closed-days notice before you choose dates.
- The website and booking page are in Japanese only. The site lists the email address info@futoki.com and the phone number 0279-26-8320 (9:00 to 18:00).
- Arrive by 20:00; that is when check-in closes.
- Dinner is not included by default. If you want the yakiniku dinner, add it when you book.
- The inn sits at the top of the stone steps, so plan your route from the bus terminal.
Frequently asked questions
Does Futoki have a large public bath?
What time is check-in at Futoki?
Is dinner included at Futoki?
Is Futoki open every day?
Does Futoki have an English website?
Bottom line (2026): Futoki is a new inn at the top of Ikaho’s stone steps, with in-room open-air baths, two private baths and a yakiniku dinner instead of a set ryokan meal. There is no large bath, the site is in Japanese only, and some days in late 2026 are closed, so check the dates on the official pages before you book.
Sources
Every fact on this page is from Futoki’s official pages: home (Japanese), rooms, dining, facilities, access, closed-days notice, dinner notice and private bath offer, the official booking page, and Shibukawa City’s bathing tax page. All were read on October 20, 2026. Prices and rules change; check the official site before you book.
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