Nishiarai, Adachi, Tokyo
Hottayu
An old neighborhood bath refreshed with herbal sauna, outdoor bathing and a deep cold pool on the men's side. It is a sento rather than a natural-spring spa; sauna layouts and opening hours differ by day.
Facility photos
Check before bathing
- Opening hours
- Weekdays 14:00–24:00; weekends and public holidays 08:00–24:00. Closed on the second Thursday of each month. Adult admission is ¥600; sauna is ¥500 extra for men and ¥350 for women.
- Access
- About a 7-minute walk from Nishiarai Station on the Tobu Skytree Line.
Spring & water temperature
- Spring-source temperature
- Not applicable; no natural spring is confirmed.
- Bathing temperature
- Not published.
- Spring classification
- Ordinary public bath; natural spring water is not identified by the current operator.
- Water handling
- The facility lists outdoor bathing and herbal sauna. The men's side has a 160 cm-deep cold bath; the women's side has two cold baths at different temperatures. No natural spring is confirmed.
The 08:00 opening applies on weekends and public holidays only; men's and women's cold-bath arrangements are not the same.
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.
