Korakuen, Bunkyo, Tokyo
Tokyo Dome Natural Hot Spring Spa LaQua
A full-scale city spa for a longer stay near Tokyo Dome, with natural spring baths, several saunas, dining and rest areas. The spring is heated and circulated, not source-flowing, and tattoos are not permitted.
Check before bathing
- Opening hours
- Generally 11:00–09:00 the following day. Indoor baths close at 08:30, outdoor baths at 07:30 and last admission is 08:00. September 2026 adult admission varies by A/B/C/D date: ¥3,500 / ¥3,800 / ¥4,400 / ¥4,700. Check-in after 19:00 reduces that day's rate by ¥1,000; staying from 01:00–06:00 adds ¥2,500. Healing Bade costs ¥1,100 extra and is limited to ages 18 and over. Scheduled closure: 2026-10-05 to 2026-10-09.
- Tattoo policy
- Tattoos, body art, paint and tattoo seals are not allowed. Children aged 0–5 are not admitted; guests aged 6–17 need a guardian and must leave by 18:00, with children aged 6–11 using the same-gender bathing area as their guardian.
Spring & water temperature
- Spring-source temperature
- Not published on the current official text page. A 2011 analysis transcription lists 38.0°C, pH 7.5 and 210 L/min; these are historical analysis figures, not a new 2026 test.
- Bathing temperature
- Outdoor natural baths about 38°C and 42–43°C; cold baths about 22°C, with men's cold pools also listed around 17°C. These are bath temperatures, not source temperature.
- Spring source
- Koishikawa Onsen, drawn from about 1,700 m below Tokyo Dome City.
- Spring classification
- Strong sodium chloride spring; high-salinity, weakly alkaline and thermal.
- pH
- Not published on the current official text page; a 2011 analysis transcription lists about 7.5.
- Flow rate
- Not published on the current official text page; a 2011 analysis transcription lists 210 L/min.
- Water handling
- The operator confirms that the spring is heated and circulated through filtration equipment. Do not describe it as source-flowing. The natural spring is used in the indoor and outdoor spring-bath zones; carbonated, oxygen and other functional baths are separate.
Admission includes towels and indoor clothing. No re-entry after leaving. Check the date-specific admission tier before visiting.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
