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Onsen

Savor Yumoto's mild alkaline waters in three dignified bathing sanctuaries. Grand bath, open-air, and private bath—enjoy the quiet bathing time unique to Yamatokan.

Yamatokan's Waters,Three Bathing Sanctuaries.

Yumoto's mild alkaline waters flow into a refined stone-paved bath hall and an open-air bath facing the Japanese garden—bathing sanctuaries where the spirit of Japanese aesthetics resides.

Grand Bath: Wa no Yu

The grand bath where stone paving adds dignity. Mild alkaline Yumoto waters flow quietly into the spacious tub.

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Open-Air Bath: Niwa no Yu

An open-air bath facing the Japanese garden. A luxurious moment of receiving the renowned Yumoto waters while gazing upon the aged pines and moss garden.

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Private Bath: Cha no Yu

A small private indoor bath with tea-room-inspired design. Reservation required, complimentary. Enjoy quiet time for two.

Spring TypeSimple Thermal Spring (Mild Alkaline)
BenefitsNeuralgia, muscular pain, fatigue recovery, skin care
Grand BathSeparated by gender (24 hours)
Private Bath1 room · reservation required · complimentary

Guide to the Baths

ONE

Grand bath (Wa no Yu): 24-hour · gender-separated

TWO

Open-air bath (Niwa no Yu): 6:00–23:00 · gender-separated

THREE

Private bath (Cha no Yu): reservation required · complimentary · 1-hour units

FOUR

Towels provided at each bath

FIVE

Please rinse before entering the tub

Hakone's Oldest Spring, Since the Age of Manyoshu

Hakone Yumoto Onsen is one of Japan's most historically significant hot spring resorts, celebrated even in the Manyoshu, the ancient poetry anthology of the Nara period. The mild alkaline simple thermal spring has been cherished since ancient times as 'beauty waters.'

Hakone Yumoto Onsen is one of Japan's most historically significant hot spring resorts, celebrated even in the Manyoshu, the ancient poetry anthology of the Nara period. The mild alkaline simple thermal spring has been cherished since ancient times as 'beauty waters.'

The soft bathing sensation that blends with the skin is known not only for fatigue recovery but also for its skin-beautifying effect of smoothing roughness. Please experience at Yamatokan the renowned spring that has flowed since the age of Manyoshu.

Frequently asked questions.

What is the quality of Yumoto's hot spring?

Simple thermal spring, mild alkaline. Long known as 'beauty waters,' it is prized for its skin-smoothing effect.

Is the private bath 'Cha no Yu' chargeable?

It is complimentary. Please make a reservation at the front desk.

Can I see the garden from the open-air bath?

Yes, 'Niwa no Yu' faces the Japanese garden, allowing you to enjoy the waters while gazing at the aged pines and moss.

Are there bathing etiquette rules?

Towels may not be brought into the tub. Please rinse with the shower before entering. Full guidance is available at the front desk.

Book your onsen stay

For day-trip baths or overnight stays, contact us by phone or the booking form.