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Hakone Suimeisou

箱根水明荘
Say it
soo·ee·may·soh
Also written
Suimeiso, Hakone Suimeiso, Suimeisou Hakone Yumoto

About Hakone Suimeisou

A 28-room ryokan on the Hayakawa river in Hakone-Yumoto. Thirteen river-side rooms have their own open-air bath of hot-spring water, and kaiseki is served in your room or in a private dining room, depending on the room.

  • OnsenYesPart free-flowing, part recirculated
  • Bath in your room13 river-side roomsOpen-air hot-spring bath
  • Private bathYesTwo open-air, ¥2,200 for 50 minutes
  • TattoosAllowedAllowed in the hot springs
  • MealsKaiseki in your room or a private roomBy room type; room-only plans too
  • Dietary needsSome dietsWhere possible, told 3 days ahead
  • ChildrenWelcomeBabies can use the baths
  • Check-in and dinnerCheck-in 14:00–18:00; out 11:00
  • Getting there2 minutes on foot from the station
See all details

Good to know before you book

  • The water is part recirculatedThe baths use hot-spring water that is part free-flowing and part recirculated and filtered.
  • Standard-room baths are heated tap waterThe open-air baths in the 13 open-air-bath rooms are 100% hot-spring water; the bath in a standard Japanese room is heated tap water.
  • Nearby restaurants close earlyMany restaurants near the ryokan close around 18:00, which matters on a room-only plan.
Rooms
28: 25 Japanese-style and 3 Japanese-Western
Setting
On the Hayakawa river in Hakone-Yumoto

Rooms and their baths

  • Open-air bath

    Open-air-bath Japanese room, stream side

    Open-air bath of 100% hot-spring water

    Meals are served in a private dining room. 10 rooms

  • No room photos yet
    Open-air bath

    Open-air-bath Japanese-Western room, stream side

    Open-air bath of 100% hot-spring water

    Meals are served in a private dining room. 3 rooms

  • No room photos yet
    Indoor bath

    Riverside Japanese room

    Bath and toilet in the room; the bath is heated tap water

    Meals are served in the room

The fine print

Last checked November 12, 2026.

Onsen

Yes. Hot-spring water, part free-flowing and part recirculated

Hakone-Yumoto spring. A large bath and a rooftop open-air bath that alternates between men and women, from check-in to 10:30 the next day.

Bath in your room

Some rooms. Open-air hot-spring bath in the 13 river-side open-air-bath rooms

Every room has a bath and toilet (Jalan); in the standard Japanese rooms it is heated tap water.

Private bath

Yes. Two open-air private baths, ¥2,200 for 50 minutes

15:00 to 22:50. Some plans include one free.

Tattoos

Allowed. Allowed in the hot springs

Meals

Included with some stays. Kaiseki in your room or a private dining room, or room-only plans

Standard Japanese rooms eat in the room; open-air-bath rooms in a private dining room. Dinner starts 18:00 to 19:00. The Posada annex is room-only, for solo travellers.

Dietary needs

Some diets. Allergies and religious needs where possible, told 3 days ahead

Children

Welcome. Welcome; babies can use the baths

One crib to rent (¥2,200); children's yukata ¥330, included in child rates with a futon.

Check-in and dinner

Check-in 14:00 to 18:00, check-out 11:00

Bags are held before check-in and after check-out.

Getting there

2 minutes' walk from Hakone-Yumoto Station

No shuttle needed. Many nearby restaurants close around 18:00.

Meals

Dinner
Kaiseki, starting between 18:00 and 19:00
Rooms
Standard Japanese rooms eat in the room; open-air-bath rooms eat in a private dining room
Room-only plans
Sold alongside the meal plans. The Posada annex is room-only, for solo travellers

Who it suits

Suits
A short trip without a car: the station is two minutes away on foot
Children
Babies can use the baths; the ryokan has one crib to rent and a play area
Less suited
Anyone set on fully free-flowing hot-spring water; here it is part recirculated

History

  1. 2016

    The women's large bath and the open-air-bath rooms are renovated.

Ryokan elsewhere to compare

Questions

Is the hot-spring water at Hakone Suimeisou free-flowing?

Partly. The ryokan says its hot-spring water is part free-flowing and part recirculated and filtered. The open-air baths in the 13 open-air-bath rooms are 100% hot-spring water.

Do all rooms have a hot-spring bath?

No. Every room has a bath and toilet, but only the 13 river-side open-air-bath rooms have hot-spring water in the room. In standard Japanese rooms the bath is heated tap water.

Is dinner served in the room?

In standard Japanese rooms, yes. Guests in open-air-bath rooms eat in a private dining room. Dinner starts between 18:00 and 19:00.

Can babies and small children stay at Hakone Suimeisou?

Yes. The baths have no age limit, so babies can use them. The ryokan has one crib to rent for ¥2,200, and children's yukata cost ¥330 or come with child rates that include a futon.