HAKONE ASHINOYU HIDDEN SPA INN

Milky Sulphur WatersSpeak in Quiet Tones.

Deep in Hakone, at Ashinoyu. Milky sulphur steam and the silence of mountain shadow weave a hidden-spring world—Gakueirou Matsuzakaya welcomes you.

Check Availability ☎ +81-460-83-6111

3 min walk from Ashinoyu bus stop 10 Rooms Milky Sulphur Spring Hidden Spa Dignity

ABOUT

Inn in the Mountain's Shadow,The Hidden Spring of Ashinoyu.

Gakueirou Matsuzakaya is a hidden hot spring inn at Ashinoyu, Hakone's oldest spa resort. Its milky white sulphur spring is known as one of Hakone's most distinctive waters. In this inn that stands quietly in the mountain's shadow, experience the original spirit of healing.

Ashinoyu is one of Hakone's oldest spa resorts, appearing even in Edo-period documents. As the inn's name 'Gakueirou' (Mountain Shadow Pavilion) suggests, this inn nestled as if protected by the great mountain has offered quiet otherworldliness to all who come.

The milky white sulphur spring carries excellent benefits for skin conditions, neuralgia, and chronic fatigue. The attentive, thorough hospitality achievable only in a small 10-room inn—please come and experience it.

FEATURES

Four things only a small inn can offer.

Family-scale closeness over hotel-scale convenience.

ONE

Milky White Sulphur Spring

The milky white water rich in sulphur is a special spring quality found only at Ashinoyu within Hakone. Every time you immerse yourself, you feel the powerful blessing of this spring.

TWO

Silence of the Mountain Shadow

The inn sheltered by Ashinoyu's deep mountain shadow possesses a stillness completely removed from daily bustle. Wind sounds, birdsong—set your spirit free in an environment where only nature's voice is heard.

THREE

Intimate Dignity of 10 Rooms

With only 10 rooms, we can give each guest our undivided attention. While preserving the dignity of a long-established inn, we offer warm, handcrafted hospitality.

FOUR

Hakone's Oldest Spa

The history of Ashinoyu hot spring dating back to the Edo period is the very depth this place holds. Experience at Gakueirou the power of the waters that have healed travelers across the ages.

ROOMS

Two ways to stay: main building and annex.

MOUNTAIN SHADOW ROOM

Mountain Shadow Japanese Room, 8 tatami

A quiet Japanese room where the mountain's shadow is felt through the window

Gakueirou's standard rooms. Surrounded by calm ink-dark appointments, the deep mountain ridgeline spreads beyond the window. Spend the quiet hours of a hidden-spring inn at leisure in this room.

8-tatami Mountain Ridge View Ink-Dark Décor Free-flow Hot Spring

GAKU SUITE

Gaku Suite, 12 tatami

Top-tier room with private open-air bath

A 12-tatami suite with direct access to a private open-air bath. The highest-grade room at Gakueirou, where milky sulphur waters are yours alone. In the silence of the mountain's shadow, enjoy a night of total immersion.

12-tatami Private Open-Air Bath Milky Sulphur Spring Top-Grade Room

ONSEN

Gakueirou's Waters,Three White Springs.

Milky white sulphur waters rich in sulphur compounds. In three bathing sanctuaries—grand bath, open-air, and private open-air—fully enjoy the hidden spring of Ashinoyu.

♨

Grand Bath: Gaku no Yu

The grand bath filled generously with milky white sulphur water. With the mountain's shadow behind you, receive Ashinoyu's renowned waters with your whole body.

🌿

Open-Air Bath: Kage no Yu

An open-air bath surrounded by deep mountain shadows. Enjoy bathing with the scent of sulphur amid the fantastical scenery of white steam dissolving into the cold mountain air.

🚪

Private Open-Air Bath (Gaku Suite)

The private open-air bath exclusive to the Gaku Suite. Monopolize the milky sulphur waters from your room. Enjoy a hidden spring experience entirely your own.

Spring TypeSulphur Spring (Milky White)

BenefitsSkin conditions, neuralgia, chronic fatigue, joint pain

Grand BathGender-separated (15:00–next day 10:00)

Private Open-AirExclusive to Gaku Suite guests

DINING

Mountain's Bountyon the Gaku Table.

Gakueirou's cuisine is kaiseki centered on mountain bounty from the Hakone foothills. Wild greens, mountain mushrooms, clear-water fish—the rich nature of Ashinoyu breathes life into every dish.

Simple, powerful mountain ingredients prepared with careful hand-craft—that is the culinary philosophy of Gakueirou.

AROUND

From Ashinoyu,Into Hakone's Depths.

From Ashinoyu deep in Hakone, venture out to the famous sites filled with nature and culture.

15 min by bus

Lake Ashi

Lake Ashi, Hakone's symbol with its view of Mt. Fuji. Board an excursion boat from Moto-Hakone pier and gaze up at Fuji's majestic form from the water.

20 min by bus

Onshi Hakone Park

A park built on the site of a former imperial villa. The view from the hilltop overlooking the lake is magnificent, especially popular during cherry blossom and autumn foliage seasons.

20 min by bus

Hakone Sekisho

A historical facility reconstructing the Edo-period checkpoint. A popular Hakone attraction where you can vividly experience the travel scene of that era.

40 min by bus

Owakudani

Hakone's foremost volcanic landscape with active steam vents. Famous for its black eggs. Access via bus through Gora.

40 min by bus

Gora Park

Gora Park with its French formal garden. Especially beautiful in rose and cherry blossom seasons; you can also enjoy tea in the teahouse.

30 min by bus

Sengokuhara Pampas Field

In autumn, Sengokuhara is one of Hakone's best scenic spots with pampas grass shining gold across the plain. Pola Museum of Art is nearby for art strolling.

ACCESS

Your Path toGakueirou.

By Bus: From Hakone-Yumoto or Odawara Station, take Hakone Tozan Bus toward Ashinoyu/Kojiri, alight at Ashinoyu stop, approx. 3 min walk.
By Train: Approx. 85 min from Shinjuku to Hakone-Yumoto by Romancecar, then approx. 40 min by Hakone Tozan Bus to Ashinoyu.
By Car: Approx. 35 min from Hakone-guchi IC via Route 1. Parking near Ashinoyu (free).
By Taxi: Approx. 30 min by taxi from Hakone-Yumoto Station. Shuttle arrangements available for guests with reservations.
Shuttle Inquiry: Contact us in advance and we will arrange a shuttle from Hakone-Yumoto Station. Please call 0460-83-6111.

FAQ

Frequently asked questions.

What causes the sulphur spring to appear milky white?

The milkiness is caused by sulphur compounds (hydrogen sulphide) that oxidize and crystallize in the spring water. You may notice white particles clinging to your skin during bathing—this is the proof of sulphur.

What are check-in and check-out times?

Check-in from 15:00, check-out by 10:00. Please consult us to suit your schedule.

How do I get to Ashinoyu?

From Hakone-Yumoto or Odawara Station, take Hakone Tozan Bus to Ashinoyu stop, then 3 min walk. Contact us for shuttle arrangements.

Is there a sulphur smell?

Yes, there is the distinctive sulphur spring smell. This is evidence of a genuine sulphur spring. Please note that it may cling to clothing and jewelry.

Can families with children stay?

Yes, families with children are welcome. However, due to the sulphur spring, prolonged bathing by infants and toddlers is discouraged. Please discuss details at reservation.