A truly relaxing hot spring trip!
~A modern-day guide to hot spring therapy~
Experience a new style of hot spring therapy!
New facility opening in Summer 2021!
Book your private hot spring bath with a Finnish sauna.
*For same-day reservations, please inquire by phone.



It has everything you need: natural hot springs, a sauna, a cold plunge pool, and indoor and outdoor relaxation spaces.
Enjoy your favorite scents and benefits with medicinal herb baths.
By using an oxygen capsule in conjunction with other treatments, you can achieve outstanding results for beauty, health, and anti-aging!
~Information about our facilities and services~
- Natural hot spring
- Löyly sauna
- Cold bath
- Outdoor bathing
- Indoor bath
- Medicinal bath
- Oxygen bath
The free-flowing natural hot spring water makes you feel luxurious.
Sakaeya's slightly acidic hot spring water is gentle on the skin and leaves you feeling warm and cozy for a long time.

A sauna room at approximately 80°C, making it easy for beginners to enter.
The sauna room is comfortably sized for two people. At approximately 80°C, it's not too hot, making it easy for beginners and women to enjoy. For those who prefer it hotter, löyly (pouring hot water onto the sauna stones) will quickly fill the room with heat.

What is Löyly...?
Löyly is the practice of pouring water onto heated sauna stones to generate steam. This increases the perceived temperature and promotes sweating. This steam bath using löyly is a characteristic feature of Finnish saunas. Please enjoy it while adjusting the heat to your liking. You can also enjoy löyly with medicinal water.

Cool down from head to toe at the bottom of the waterfall!
The cold plunge pool has a waterfall, so you can cool down from your head without having to submerge yourself in the water.
For those who want it even colder, you can add ice.
For those who want it even colder, you can add ice.

Enjoy the refreshing fresh air and soothe yourself with the pleasant natural breeze.
On the 6th floor, in the Forest Relaxation area, there is a wooden deck space where you can enjoy the fresh air and feel the breeze. You can relax and unwind in a reclining chair.

Sofa space
You can also use a fan to circulate air during the indoor relaxation area. The sofa and cushions make it a comfortable and relaxing space.

You can enjoy the aroma of medicinal herbs and plants by brewing them into a medicinal bath.

Herbal sauna
You can choose one of five types of Sakaeya's original blend herbal and medicinal bar.

Hyperbaric oxygen capsule room
It can accommodate up to two people. Entering it before the sauna increases sweating and enhances the sauna's effects. Entering it after the sauna also has a fatigue-recovering effect, allowing you to achieve the ultimate state of "sauna bliss."

Overview of private hot spring baths with saunas
Free service
- Free sauna hat rental
- Free rental towels
- Free drinks
High-quality sauna hat made in Imabari
High-quality sauna hats made in Imabari are available for free rental!
This sauna hat is convenient because it has a pocket where you can put your accessories.
This is an original product from our museum, created in collaboration with OTSO.
This sauna hat is convenient because it has a pocket where you can put your accessories.
This is an original product from our museum, created in collaboration with OTSO.

We paid close attention to the quality of our sauna towels as well!
MOKU sauna towels. They are lighter and more absorbent than regular towels. A particularly welcome item for female sauna enthusiasts. We offer these for free rental. Another great feature is that they are 1 meter long, compared to the typical 80 cm of a regular towel.

Drinks are free too!
We also offer drinks. In addition, we have unlimited cold water directly connected to the tap (with a water purifier, made by Waterstand, recommended as the No. 1 choice by Aqua Sommelier). We also offer shaved ice depending on the season.

Professional Women's Sauna Voices
Lyricist Meiko Yamamoto
It's packed with things you wish you had! It shows great understanding!
Bath Girl
A sauna lover overflowing with passion!? A heavenly inn with a private sauna available for rent.
Mari Azumi, Finnish Sauna Ambassador
A private sauna, this room, and an open-air bath outside... Is this heaven??
Day trips are also possible!
The whole place is reserved for you!
- ■6F Forest Healing
- Operating hours: 2 PM to 10:30 PM, 6 AM to 11:30 AM, outdoor bathing available.
- ■ 5F Water Therapy
- Operating hours: 2 PM to 9 PM, 6:30 AM to 11 AM. No outdoor bathing available. There is a free-flowing cold bath using mountain spring water.
- Private rental fee: Forest relaxationThe healing power of water (common)
- Room rates: 1 person ¥5,000 (tax included), 2 people ¥7,000 (tax included), 3 people ¥9,000 (tax included), 4 people ¥10,000 (tax included)
- *For same-day reservations, please inquire by phone.
- ■ 1F O₂ Lounge Hyperbaric Oxygen Capsule Room
- Usage hours 6:00-23:00
- Oxygen bath fee
- 1,650 yen (tax included) per room for 30 minutes (discounts available for sauna users!)
- Here's a great value accommodation plan that includes 100 minutes of private use of a sauna-equipped hot spring bath.
- Go to accommodation plans