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Hotel Mount Fuji

ホテルマウント富士ホテルマウントふじ

Lakeside resort hotel with Mt. Fuji-view rotenburo and loyly sauna

Lodging
Chubu·Yamanashi

Day Use

Yes
12:00–22:00
¥2,500

Adult 2,500 yen / Child (4-12 yrs) 1,250 yen / Under 3 free. Towel included. Hanare no Yu reception 12:00-16:00 (Wed 14:00-16:00); Mantensei no Yu reception 14:00-18:00. Day-use guests may stay until 22:00/24:00 after check-in. Busy periods: reception may end at 15:00.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Sauna room of any kind

Cold BathYes

Cold water plunge bath, typically used after sauna

Bathing Arrangements

Private BathNo

A private bath you can reserve for yourself or your group

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooNo

Allows entry with visible tattoos

KidsWith Conditions

Welcomes children and families

Children allowed; infants in diapers may not enter the bath tub (baby bath available in changing room). Children 7+ may not use mixed-gender bathing.

DiningYes

A restaurant or dining room open to visitors, not only meals for overnight guests

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels to rent or borrow at the desk

ParkingYes

On-site or nearby parking available

山中湖温泉

Yamanakako Onsen

Operated by · 山中湖観光社共有地入会管理組合

湯
Simple
Color
colorless and transparent
Taste
tasteless
Odor
odorless

Sodium Sulfate spring

pH 10.0AlkalineStrongly alkaline
Composition fingerprint0.2 g/kg dissolved · Hypotonic
Na⁺86
Ca²⁺13
SO₄²⁻45
HSiO₃⁻19
Cl⁻18
◀ CationsAnions ▶
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Sulfate SO₄²⁻
"gypsum / Glauber's salt" — vessels and wound healing.
Known good for
  • Smooth skindry, rough skin
  • Recoveryfatigue, stress

A pH 10.0 simple thermal spring on the shore of Lake Yamanaka — strongly alkaline, with the pronounced slippery feel of Japan's beauty-water family laid over a very lightly mineralized body (just 172 mg/kg dissolved solids). The base water is gentle and almost unscented, but the high pH gives the skin a distinctly soapy glide. A cold-mineral source at 26 °C, so it is reheated for bathing.

Sampled at wellhead·Analyzed Jan 30, 2019·株式会社 山梨県環境科学検査センター·Cert no. 山環温第30-31号

Explore the water

Views

Mountains
Lake

Highlights

Steam Sauna
Jet Bath
Drinking Spring

About

A resort hotel on Lake Yamanaka (山中湖) with two separate bath buildings, both framing views of Mt. Fuji. Hanare no Yu (はなれの湯) is a semi-open rotenburo where you can watch the lake and the mountain at the same time. Mantensei no Yu (満天星の湯) leans into the sauna side, with a Finnish loyly sauna, a lava-stone mist sauna, and two cold baths, one fed by natural Mt. Fuji spring water (also drinkable from the tap) and one with a vibra-jet current. The outdoor relaxation area sits at around 1,100 meters, where the wind comes off the mountain. Day use is available for both buildings.

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Reserve or check availability on a booking site.

5.0

1 review

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Sergey M
2 years ago· edited

166. Hotel Mount Fuji, Yamanakako ★★★ I went for a day trip. It says 12:00 to 18:00. The price is 2200, towels are provided. It is located north of Yamanakako, and the accessibility is acceptable. Not on the first try, but I found it and got the stamp for the 100 Onsen of Yamanashi. On the top floor there is a scenic bath with a view of the lake and Fuji. In good weather, the view is incredible. The water is clear, and the temperature is hot. On the lower floor there is the main area, with the following baths: 1. Indoor bath, the water is clear, and the temperature is hot. From the indoor bath you can also see Fuji in good weather, even though it is through glass. 2. Sauna. 3. Modern steam bath. 4. Cold bath. 5. Separate cold jet area. 6. Outdoor rock bath, the water is clear, and the temperature is hot. Good view of Fuji. There are also loungers nearby for relaxing. In good weather on the lake, when Fuji is visible, this is simply a must. 08.07.2024

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Last updated October 11, 2026