＜公式＞ao（アオ） | 白馬絶景サウナ「Hakuba Zekkei Sauna」

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「Shinshu Experience Discount Eligible Slot（50% off for Nagano residents / 20% off for non-residents」
※Only the 9:30 a.m. session is eligible for this campaign.

Dive into Aoki Lake, one of Japan’s clearest lakes,
filled with the cold spring water of the Northern Alps.
Experience the ultimate lakeside sauna with a breathtaking view
of Hakuba’s white mountain peaks reflected on the calm waters.

SAUNA SPEC

Capacity: 12名

Sauna room: 6㎡

Sauna temperature: 90℃

Stove: Electric sauna

Water bath: 12〜14℃

Resting Area: There is a superb view space

SERVICE GUIDE

Opening Hours (2026): ■ April 10 – July 15
Mon–Wed
9:30 – 17:30 (Last entry: 15:30)
※During Golden Week (April 27–28), we will be open until 19:00.
Thu–Sun & Public Holidays
9:30 – 19:00 (Last entry: 17:00)

■ July 16 – Mid-November
Open Daily
9:30 – 19:00 (Last entry: 17:00)

Reservation Slots: 2-hour system (45-minute reservation slots)
9:30～/10:15～/11:00～/11:45～/12:30～/13:15～/14:00～/14:45～/15:30～/16:15～/17:00～
※Hours of operation may change depending on the season.
※「Shinshu Experience Discount Eligible Slot（50% off for Nagano residents / 20% off for non-residents」　Only the 9:30 a.m. session is eligible for this campaign.>Click Here for more details

Closed Day: None (Closed on Wednesdays only in December and March)

Price

2-hour session (per person) ¥3,500 (tax included)〜(*Only available for high school students and older)

*Includes one large bath towel rental per person.
＜Local Discount＞
¥2,000(tax included, no bath towel, weekdays only)
Eligible areas: Omachi City, Hakuba Village, Otari Village, Ogawa Village, Matsukawa Village, Ikeda Town

>Click Here for Local Reservations

Option: Rental swimwear　1,000Yen（Available for men and women）
Sauna poncho 1,500Yen

Cancellation Policy: 20% 10 - 2 days before the date of use
50% Day before use
100% Day of use
100% No show

Other Important Information: ・Use is restricted to individuals aged high school and above.
・Reservations are prioritized. If you arrive without a reservation, you may need to wait due to operational constraints. We highly recommend booking in advance.
・Online reservations are limited to groups of up to 4 people per time slot. For groups of 5 or more, please contact us by phone.

Booking

Click the above to be redirected
to the reservation page.

※If you would like to use the Shinshu Experience Discount,
please make your reservation through the dedicated Asoview! page rather than this reservation form.
Please note that the discount will not be applied to direct bookings.
Asoview! Dedicated Reservation Page

FACILLITY

Reception

Reception is available starting 15 minutes before your reserved time. Please come to the café reception desk.

Sauna

At ao Sauna in Hakuba, enjoy breathtaking views of the stunning Aoki Lake from within the sauna room. This is a one-of-a-kind experience, offering some of the most spectacular sauna views in Japan. Only at Hakuba’s scenic sauna can you immerse yourself in such beauty.

Water Bath

A plunge bath that lets you dive straight into the lake, and a standard cold bath continuously fed with chilled well water—offering two distinct cool-down experiences.

Resting Space

Feel the breeze from Aoki Lake while enjoying the scenic views, and find your balance at ao.

Cafe

We have an attached café where you can purchase drinks and enjoy them during your visit.

ACCSESS

〒398-0001
21462-1 Taira, Omachi City, Nagano Prefecture
Lake Omachi Lake Aoki
TEL：0261-85-4010

Access
・10 km south of Hakuba Station on the JR Oito Line (15 minutes by car)
・13 km north of Omachi Station on the JR Oito Line (20 minutes by car)
2 km north of Yanba Station on the JR Oito Line (25 minutes on foot)
*If using a car navigation system, please set the destination to "21462-1 Taira, Omachi City, Nagano Prefecture.

Booking

Click the above to be redirected to the reservation page.

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SAUNA SPEC

SERVICE GUIDE

FACILLITY

ACCSESS

SNS