RakutenchiNaturalHotSpringHodennoYu

Relax down to your core in a rich famous spring with free-flowing source water and a bona sauna

Chiba Ichikawa City

"Rakutenchi Natural Hot Spring Hoden no Yu" is an authentic day-trip hot spring facility in Ichikawa, Chiba Prefecture. Its natural hot spring water is fossil seawater that rises from 1,500 meters underground, and its high salt content gives it excellent heat-retaining and moisturizing effects, earning it the nickname "the bath of warmth." In the open-air bath, you can enjoy a "gensen kakenagashi yakuto" bath, where fresh spring water flows directly from the source. The sauna room is a bona sauna with its heat source installed beneath the benches, evenly warming the room and promoting a high-quality sweat. The spacious cold plunge bath is deeply chilled, instantly refreshing your body after sauna use. With a mugwort-scented steam sauna and high-concentration carbonated springs, this facility offers a wide variety of baths for a deeply soothing experience.

Hot Spring & Bath Information

Hoden Onsen

TypeNatural Hot Spring

Flow-through

A amber-colored sodium-chloride strong saline hot spring that rises from 1,500 meters underground. This highly mineral-rich, hypertonic spring is known for its excellent heat-retaining and moisturizing properties and is cherished as the bath of warmth. In the open-air bath's gensen kakenagashi yakuto, you can feel the power of fresh water directly on your skin, without any added water. After bathing, your body stays warm for a long time and your fatigue is gently eased from the roots.

Sauna

bona sauna

90°C

Sauna TypeDry Sauna

Stove Typeconvection

Capacity25people

Men'sWomen's

A dry sauna in the bona sauna style, with the heat source installed beneath the benches. Heat circulates efficiently from the floor up, filling the room with evenly distributed warmth. Auto-löyly is also available, so you can enjoy high-quality sweating with a comfortable level of humidity. In the spacious room, you can relax and refresh while watching TV.

Mugwort Steam Sauna

50°C

Sauna TypeSteam Sauna

Capacity10people

Men'sWomen's

A steam sauna filled with vapor rich in mugwort ingredients. The herbal scent that spreads throughout the room passes through your nose and brings a deep sense of relaxation. Steam is released periodically, allowing you to warm up comfortably while moisturizing your skin. Its appeal lies in a gentle, enveloping sweating experience that differs from a dry sauna.

Cold Bath

Cold Plunge Bath

15°C

Water Qualitytap

Capacity10people

Men'sWomen's

A spacious cold plunge bath boasting one of the largest sizes and depths in the area. Its crisp, cold water quickly cools down your body after sauna use. Because it is deep, you can immerse yourself fully, making efficient cooling possible. Fresh water is constantly supplied, guiding you into a refreshing tottonou moment.

Business Hours

Monday
10:00〜01:00
Tuesday
10:00〜01:00
Wednesday
10:00〜01:00
Thursday
10:00〜01:00
Friday
10:00〜01:00
Saturday
09:00〜01:00
Sunday
09:00〜01:00
Holiday
09:00〜01:00

Closed Days: None

Address

〒272-0802 1-1520 Kashiwii-cho, Ichikawa-shi, Chiba Prefecture

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

Gender Access

Gender Separated

🚫
Tattoo Policy
No Tattoos
Premium Magazine

Japan's Must-Visit Finest Onsen & Sauna Facilities

Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.

Learn more