NaturalHotSpringHanasakinoYu

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Saitama Ageo City

Natural Hot Spring Hanasaki no Yu is a day-use hot spring facility located in Ageo City, Saitama Prefecture. The brownish chloride spring water, which wells up from 1,500 meters underground, warms the body from the core with its excellent heat retention, preventing chills after bathing. The löyly sauna, with automatic löyly sessions every hour at 30 minutes past, and the cold plunge bath provide a refreshing state of perfect relaxation. The facility also features three rooms with seven types of bedrock baths, an Asian-themed restaurant, and a relaxation salon, allowing for a comfortable stay from morning until late at night. It is a 5-minute walk from Haraichi Station and offers free parking for 280 cars.

Hot Spring & Bath Information

Hanasaki no Yu

TypeNatural Hot Spring

Flow-through

A natural hot spring that wells up from 1,500 meters underground. It contains components similar to seawater, as well as minerals and iron, turning brownish when exposed to air. Bathing results in salt adhering to the skin, preventing the evaporation of sweat and providing very high heat retention, making it difficult to catch a chill. The water feels smooth and warms the body from the core. Enjoy a variety of baths, including an open-air bath with free-flowing spring water, pot baths, high-concentration carbonated baths, and reclining baths. It is expected to be effective for cold sensitivity, fatigue recovery, and muscle pain.

Sauna

Löyly Sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity24people

Men's

Unlike a regular dry sauna, the löyly sauna maintains a constant humidity, providing refreshing perspiration and thermal effects. Automatic löyly sessions are conducted every hour at 30 minutes past (8:30 to 22:30), where water is automatically sprayed onto heated sauna stones, causing high-temperature steam to rise and rapidly increasing the room's humidity.

Cold Bath

Cold Bath

14°C

Water QualityTap Water

Capacity4people

Men's

A cold water bath ideal for cooling down after the sauna. With a crisp cold temperature, it quickly tightens the body heated in the löyly sauna. It is expected to activate metabolism and promote blood circulation.

Business Hours

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

Closed Days: None

Address

570 Haraichi, Ageo City, Saitama Prefecture

View on Google Maps

Website

http://hanasakispa.jp/
Onsen & Spa Facilities (Super Sento, Sauna, Spa)

Gender Access

Gender Separated

🏷️
Tattoo Policy
OK if fully covered with designated stickers
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