- Address: 2-57 Aomi, Tokyo, Japan 135-0064
- Hours: 11am-9am of next morning (cutoff time for admittance: 7 am)
- Admission: Adults (12 and over): 2480 yen, Children (4–11): 1000 yen
What the spa lacks in authenticity if makes up for in scope: there are six different types of baths with different temperatures and textures including a lukewarm “Summer Bath,” foot baths and even a special bath for dogs (the Tsunayoshi Bath Tub)! The water is drawn from 1400 meters below ground and is rich in sodium and chlorine ions that refresh and relieve muscle pains. All of the baths are separated by gender.
When you grow tired of soaking you can spend hours exploring the park and it's many places to drink and dine, shop and have your fortune told. The complex is open 24 hours and there is a hotel on site.