Quick FactsOverview
About Spa Resort Hawaiians
Spa Resort Hawaiians, Japan is a large Hawaiian-themed resort and onsen complex in Iwaki, Fukushima Prefecture. It opened in January 1966 as the Joban Hawaiian Center, making it Japan's first theme park. The resort was built by the Joban Coal Company as local coal mining declined; hot spring water that had been an inconvenience to the mines was repurposed to create a tropical onsen destination. The hot spring water is sourced from Iwaki Yumoto Onsen, a spring with over 1,600 years of history ranked among Japan's three major ancient hot springs alongside Arima and Dogo. Three tonnes of natural hot spring water per minute feed the resort's pools and baths.
The resort is divided into six theme parks. The Water Park is a permanent tropical indoor environment at 28 degrees Celsius year-round, with pools, water slides, and the Beach Theater stage for daily Polynesian dance shows by the Hula Girls. Spring Park has hot spring pools where swimsuits are worn. Edo Jowa Yoichi is a large Edo-period-styled outdoor bath cited in the Guinness World Records as the world's largest at approximately 1,000 square metres; bathing here is nude and gender-separated. Spa Garden Pareo is an outdoor spa area (closed in winter). Big Aloha features Japan's largest body slider. Vir Port offers wellness and beauty treatments. Four hotels are on site.
Location & Access
Getting to Spa Resort Hawaiians
Spa Resort Hawaiians is at 50 Warabidaira, Fujiwaramachi, Joban, Iwaki-shi, Fukushima 972-8326. By public transport from Tokyo, take the JR Joban Line Limited Express Hitachi from Ueno Station to Yumoto Station, approximately two hours; a free shuttle bus runs from Yumoto Station to the resort every hour and takes approximately 15 minutes. Free guest buses also run directly from Tokyo (three hours) and Yokohama (three and a half hours) for hotel guests staying overnight; advance reservation is required. By car from Tokyo, the drive takes approximately two hours via the Joban Expressway.
Entry prices vary by day and time. Full-day adult admission is approximately 3,570 yen on weekdays and approximately 4,120 yen on weekends and holidays. Reduced rates apply for afternoon entry (after 15:00) and evening entry (after 18:00). Children's and infant pricing are lower. Prices are subject to change and seasonal variation; confirm current rates on the official site before visiting. The resort is open most days with a small number of irregular maintenance closures. Spa Garden Pareo is closed in winter. The resort is a full-day destination with on-site restaurants and four hotel options for overnight stays.
Suitability & Accessibility
Who Spa Resort Hawaiians Suits
Spa Resort Hawaiians suits families, groups, and anyone who wants a full-day out combining water park activities, genuine hot spring bathing, and live entertainment in a single destination. The Hawaiian theme gives it a character unlike any other hot spring venue in Japan, and the year-round tropical indoor environment of the Water Park makes it viable in all seasons including winter. The Hula Girls Polynesian dance shows are a nationally famous attraction in their own right and add cultural value beyond standard onsen.
For hot spring enthusiasts, Edo Jowa Yoichi is the standout element: a Guinness-record 1,000-square-metre outdoor bath fed by genuine Iwaki Yumoto Onsen water, with an Edo-period design and traditional nude bathing. Spring Park offers swimsuit-permitted hot spring bathing for those less comfortable with traditional onsen. The combination of both options makes the resort accessible to a wide range of visitors.
Families with children of all ages are well-accommodated, with gentle wading areas, water slides, and stage shows. Wheelchair users can access parts of the resort; modern facilities and wide paths make it more accessible than traditional onsen towns. The free shuttle from Yumoto Station makes access straightforward without a car. This is a commercially operated resort, not a traditional onsen town, and the experience reflects that.
Safety & Etiquette
Spa Resort Hawaiians Safety Tips
Spa Resort Hawaiians is generally safe as a professionally managed resort with lifeguards and trained staff across all facilities. The main safety considerations are the diversity of pools and baths with different temperatures and rules, and the distinction between swimsuit-permitted areas and traditional nude bathing zones.
The Water Park pools and Spring Park are swimsuit areas; swimwear is required. Edo Jowa Yoichi is a traditional outdoor hot spring bath where swimwear is not permitted; bathing is nude and gender-separated. Check posted signage at each zone before entering, as the distinction between swimsuit and non-swimsuit areas can be confusing for first-time visitors. The water in Edo Jowa Yoichi is genuine geothermal hot spring water at onsen temperatures; limit soaking to 10 to 15 minutes, rest between sessions, and drink water. People with heart conditions or hypertension should consult a doctor. Shower and wash before entering any hot spring bath.
Water slides require standard safety protocols; follow posted height and weight restrictions and staff instructions. Do not run on pool decks. Children should be supervised at all times near any pool or body of water, including the hot spring baths. The outdoor areas including Edo Jowa Yoichi are subject to weather; the resort may restrict outdoor zones in severe weather. Cameras are not permitted in bathing areas. The free shuttle bus runs approximately hourly; confirm current times at Yumoto Station before your visit.
