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Le Grand Karuizawa Hotel & Resort; Happu Onsen

Karuizawa, Nagano, Japan
Le Grand Karuizawa Hotel & Resort; Happu Onsen

Illustration photo — not a verified picture of this exact spot.

Location
Karuizawa, Nagano, Japan
Water type
sulfurous, thermal
Temperature
65 °C
pH
6.5

Water profile

Thermicity
Sedative
65 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

The Le Grand Karuizawa Hotel & Resort; Happu Onsen onsen, in Karuizawa, Nagano, offers thermal sulfurous water at 65°C in a setting combining an indoor bath, outdoor bath and sauna.

Insider tip — Le Grand Karuizawa Hotel & Resort is one of the most prestigious addresses in Japan's most exclusive mountain resort. 'Happu Onsen' (fortune/happiness spring) offers luxury hotel spa facilities with volcanic sulfurous waters from the Asama belt. The ideal retreat for Tokyo's discerning elite — or anyone wanting a splurge in the forest.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 65 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.