Natural hot spring Heiwajima
Good to know before you go
- Getting there
- Heiwajima Station · 14 min walk (Keikyu Main Line)
- Hours
- 24 hours
- Admission
- ¥2,400 (weekdays, adults 7-hour plan), ¥2,900 (weekends and holidays, adults 7-hour plan), ¥1,000 (children ages 3–12), ¥300 (under 3)
- Time needed
- 3–7 hours
- Best time to go
- Weekday afternoons between 12:00 and 17:00, when the baths are least crowded before commuter arrivals and late-night airport transfers.
Hours can change on holidays — check the official site before travelling.
About
Natural Hot Spring Heiwajima is a massive, 24-hour onsen complex located near Haneda Airport, boasting mineral-rich natural spring water pumped from 2,000 meters underground. It is an ideal spot to recuperate from jet lag, featuring a variety of indoor baths, stone saunas, and a spacious relaxation lounge with reclining television chairs. Expect a modern, clean, and highly functional facility that caters beautifully to late-night and early-morning travelers.
What Japanese guides note
While operating 24 hours inside the BIGFUN Heiwajima entertainment complex, standard admission is structured as a seven-hour stay, with an hourly extension fee and a ¥1,900 surcharge added between 1:00 and 5:00 unless booked under a dedicated airport shuttle package. Walking from Heiwajima Station requires about 14 minutes, so taking the dedicated 100-yen shuttle bus from the station is the standard local approach. Bathing areas shut down on a staggered schedule each night for thorough sanitation.
Details from local sources
- Visitors with tattoos are admitted only if all body art can be covered completely by up to four facility-sold patch stickers measuring 10 by 15 centimeters at ¥260 apiece. [source]
- Visitors returning to Heiwajima Station or Omori Station by one-coin shuttle bus can pick up a free bus ticket at the front desk upon checkout. [source]
- Although the complex operates around the clock, the two main bath zones close for cleaning alternately: the Viewing Spa from 2:30 to 6:00 and the Shining Spa from 6:00 to 9:30. [source]
- The spring yields 150 tons of sodium-chloride strong-salt spring water per day from 2,000 meters below ground with a pH rating of 7.6. [source]
Insider Tip
Book their airport transit package in advance for a cheap overnight stay that includes a free shuttle bus directly to or from Haneda.
Frequently asked
Are visitors with tattoos allowed inside Natural Hot Spring Heiwajima?
Guests with tattoos are permitted only if their body art can be fully concealed beneath designated adhesive cover seal patches. A maximum of four patches measuring 10 by 15 centimeters each are allowed, which must be purchased at the front desk for ¥260 per sheet.
How does transit between Heiwajima Station and the onsen work?
A 100-yen one-coin shuttle bus links Keikyu Heiwajima Station and JR Omori Station directly to the complex in 3 to 10 minutes. On Boat Race Heiwajima event days, a free bus operates instead. When checking out, visitors can collect a complimentary return bus ticket at the reception desk.
Can infants and diaper-wearing toddlers use the hot spring baths?
Infants under three years old and children who are not yet toilet-trained are prohibited from entering the communal thermal bath tubs. Instead, families traveling with babies may bathe them in the designated washing areas using complimentary plastic baby bathtubs provided by the facility.
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