Chiba Urayasu City
SPA&HOTEL Maihama Eurasia
A luxurious resort with a rare kelo sauna and fossil seawater from 1,700 m (5,577 ft) underground
- Natural Hot Spring
- Free-flow from source
- Kelo Wood
- Auto löyly available
- Finnish sauna
- Sauna Available
About SPA&HOTEL Maihama Eurasia
SPA&HOTEL Maihama Eurasia is a spa hotel in Urayasu, Chiba Prefecture. Its greatest draw is its wide range of baths, from open-air baths filled with mineral-rich fossil seawater drawn from deep underground to a kelo sauna built from rare Finnish wood. Alongside a varied selection of separate baths for men and women, the mixed-gender SPA+ area offers a sweeping panoramic sauna and distinctive warm-stone rooms. With a restaurant and generous rest areas, it’s a place for deep relaxation of body and mind and a stay far removed from everyday life. The spa is open to day visitors.
Hot SpringONSEN
Natural Onsen Kogane-no-Yu
A natural onsen of mineral-rich fossil seawater drawn from deep underground, generously fed straight from the source, never recirculated. Its prized cloudy water speaks of the earth’s powerful bounty, and you can soak to your heart’s content in the spacious open-air bath while feeling the breeze. After bathing, your skin feels soft and moist, and you are wrapped in deep relaxation.
Specialty Baths
A wide variety of baths awaits, including tubs of different depths for full or half-body soaking and a skin-temperature carbonated bath where bubbles of carbon dioxide envelop your whole body. Some baths are kept at lower temperatures, so you can warm up to the core while going easy on your body. It’s a blissful time to slowly ease away the fatigue of daily life.
Main BathSauna
Kelo Sauna
This sauna is lavishly built from kelo, the silver-aged pine Finns call the jewel of wood, a rare timber from the homeland of sauna. Antique kelo lines the walls, faithfully recreating the authentic Finnish atmosphere. A rich woody fragrance fills the room and, together with the heat, brings deep relaxation. Immersed and far from everyday life, you can enjoy a pleasant, steady sweat.
Caldarium
A steam room where steam, gently warmed by heat from the walls, floor and benches, fills the space. The fine steam is infused with a soothing aroma, so you can enjoy aromatherapy as you sit in the steam. Wrapped in mild heat and rich fragrance, your body warms gently as you let go completely.
Log Sauna
An authentic high-temperature dry sauna built from sturdy stacked hinoki logs about 30 cm (1 ft) across, among the thickest used for a sauna in Japan. Its solid construction recalls the original form of the sauna, and you can take in the powerful heat with your whole body while feeling the bold warmth of the wood. It draws out a deep sweat and leads you toward a refreshing sense of totonou, a state of deep relaxation.
Finnish Sauna
A high-temperature dry sauna for women, with modern interiors in beautiful harmony. In this refined, calm space, you can feel powerful heat that warms you right to the core. Sit with the heat in quiet reflection and enjoy a quality moment of refreshment as you work up a pleasant sweat.
Tepidarium
This tepidarium, a room where gentle heat radiates from the walls, floor and benches, is a skin-friendly sauna and a welcome treat for women. It warms the body slowly and deeply without drying out the skin. The air never feels stifling, so you can stay comfortably for a long time, surrendering to the gentle heat and deep relaxation.
Cooling Room
A cooling room for women that quickly cools a body well warmed in the sauna and tightens the skin. Even those who don’t care for the cold plunge can cool down comfortably and without strain, as a crisp, refreshing feeling spreads through the whole body. This cool, comfortable space gently supports a sublime sense of totonou.
Main BathCold Bath
Cold plunge
A refreshing cold plunge that instantly cools a body heated to the core in the sauna, as the cold pulls the body taut. Its bracing chill brings a crisp cool-down and leads smoothly on to cooling off in the open air. Clear, cold water envelops your whole body and guides you toward a sublime sense of totonou.
Co-edSauna
SPA+ Grand View Sauna
Located in the SPA+ area and open to both men and women, this panoramic sauna has one of the largest window areas of any sauna in Japan. Huge windows fill your view with beautiful scenery of the Maihama resort area and central Tokyo. In this wonderfully open space, you can spend a luxurious moment wrapped in pleasant heat while gazing at the spectacular view.
Hot Stone SpaHOT STONE SPA
SPA+ Warm-Stone Rooms
A varied set of warm-stone room lounges spreads across the mixed-gender SPA+ area. The distinctive rooms include DANRAN, where radiant heat lets you chat and spend time together; MEISOU, where images on the ceiling create an otherworldly sense of immersion; SALT BRICK, glowing with Himalayan rock salt; and SHIKISAI, where shifting colors restore body and mind. Once thoroughly warmed, cool down quickly in ICE DOME or KAMAKURA, then linger in the blissful afterglow in a relaxation area bathed in natural light.
Stay here
Availability and rates are shown on each booking site.
This page contains affiliate links. Booking through them costs you nothing extra.
Facility Information
- Address
- 13-20 Chidori, Urayasu, Chiba
- Business Hours
- 11:00〜01:00/05:00〜09:00
(Day visitors) 11:00–1:00 (next day) and 5:00–9:00 (a late-night surcharge applies after 1:00 a.m.)
- Closed Days
- *About twice a year, opening hours may differ due to legally required maintenance.
- Gender Access
- Gender Separated
- Tattoo Policy (Communal Bath)
- No Tattoos
Entry is permitted only if tattoos can be covered with no more than four of the dedicated stickers (10 cm × 15 cm, about 4 × 6 in) sold at the spa counter. You may not bring your own stickers.
- Official Website
- View official site
Access
By car
- About 20 minutes from central Tokyo (Shuto Expressway Route 9 → Bayshore Route → Urayasu Ramp), then about 6 minutes from Urayasu Ramp
- From Tokyo: Shuto Expressway Route 9 → Bayshore Route → Kasai Ramp → National Route 357 → cross Maihama Bridge and turn right at the first traffic light (Maihama intersection)
- From Chiba: Shuto Expressway Bayshore Route → Urayasu Ramp → National Route 357 → turn left at the second traffic light (Maihama intersection)
By train and bus
- JR Maihama Station (South Exit) → shuttle bus, about 7 minutes
Shuttle bus
- Maihama Station Line: about 7 minutes from hotel bus stop “C-3” at JR Maihama Station South Exit; runs daily
- From Maihama Station South Exit 6:05–23:25 (at :05, :25 and :45 past each hour) / from the inn 5:55–23:48
- Stop “C-3” has no sign; wait near the pillar with a posted notice. Seating is limited, and if the bus is full, take the next one
- Urayasu City Loop Line: from Urayasu Station (Tozai Line) 9:50–22:50 (at :50 past each hour) / from Shin-Urayasu Station (Keiyo Line) 10:00–23:00 (on the hour)
- Urayasu City Loop Line: from the inn 9:30–22:30 (at :30 past each hour)
Entering “13-20 Chidori, Urayasu” into a car navigation system may show Tokyo Chuo Mokuzai, but it is on the same site (across from Urayasu Marina)
Visited by the Editor-in-Chief
The Editor-in-Chief visited in person in July 2026
Bypassing Disney for the Finest Kelo Sauna
Read the full review
See other onsen and saunas in this area
Chiba
Spa Metsa Otaka Ryusenji no Yu
A large bathhouse with Japan’s first Dragon Sauna and a wide range of baths
Chiba
Narita Airport Onsen Sora no Yu
A superb resort with a natural onsen fed straight from the source, never recirculated, and views of planes soaring across the sky
Chiba
SATOYAMA TERRACE
A mecca of outdoor saunas where the wind and water of the wooded hills fill all five senses