ToyotaKoromoOnsenOidennoYu

The single-digit "single" cold bath and daily aufguss sessions are the big draw

Aichi Toyota City

"Toyota Koromo Onsen Oiden no Yu" is one of the largest super sento in Toyota City, Aichi Prefecture. What has particularly caught the attention of sauna enthusiasts is the ultra-cold bath kept at single-digit temperatures, commonly known as "single." In the high-temperature sauna, aufguss sessions are held, offering an overwhelming totonou experience through the powerful contrast between intense heat and icy-cold water. In addition to a variety of baths such as a high-concentration carbonated spring and milky bubble baths, there is also Oiden no Yu Sauna Square, which includes a coworking space. With relaxation facilities and a restaurant as well, it is a comfortable place to spend the whole day.

Sauna

High-temperature sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity25people

Men'sWomen's

A spacious, multi-level tower-style high-temperature sauna. In the men's bath area, aufguss sessions are held every day, allowing you to be bathed in hot air from experienced staff. The women's bath area is equipped with auto-löyly, wrapping your whole body in comfortably humid heat. The roomy interior feels open and lets you enjoy the heat at your preferred height while experiencing refreshing perspiration.

Cold Bath

Ultra-cold bath (single)

9°C

Water QualityTap Water

Capacity2people

Men'sWomen's

An extremely cold bath that maintains single-digit water temperatures, commonly known as "single." Its defining feature is the intense cooling sensation that makes your whole body tighten the moment you step in. It rapidly cools down a body heated by the high-temperature sauna, leading you to a vivid totonou experience unlike anything else. As a near-sacred facility for sauna enthusiasts, it enjoys overwhelming popularity.

Cold bath

16°C

Water QualityTap Water

Capacity6people

Men'sWomen's

A standard cold plunge bath maintained at a moderate cool temperature. It is ideal for those who find ultra-cold baths too much or who want to cool down slowly. With water that feels gentle on the skin, it refreshes you comfortably while softly cooling your body. By using the two types of cold baths depending on your preference, you can enjoy a more profound hot-and-cold alternating bath experience.

Business Hours

Monday
08:00〜01:00
Tuesday
08:00〜01:00
Wednesday
08:00〜01:00
Thursday
08:00〜01:00
Friday
08:00〜01:00
Saturday
06:00〜01:00
Sunday
06:00〜01:00
Holiday
06:00〜01:00

Closed Days: None

Address

471-0831 1-1-1 Tsukasa-cho, Toyota City, Aichi Prefecture

Onsen & Spa Facilities (Super Sento, Sauna, Spa)

Gender Access

Gender Separated

🚫
Tattoo Policy
No Tattoos
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