743 (31). Shinkai Onsen, Matsuyama (NON_ONSEN) Sento for ¥450 with tap water. The stated hours are 14:00 to 22:30. The bath photos from the internet match only roughly, I did not remember it well. Indoor area. It is fine to breathe inside. 1. Bubble bath. The water is clear, temperature 41.5. 2. Two denki-buro. 3. Rectangular bath with clear water, temperature 43.5. 4. Small stone bath with two jets. The water is clear, temperature 40.5. 5. Sauna. 6. Cold bath. 07.01.2026
Day Use
Yes14:00–22:30
¥450
Bathing & Water
Indoor BathYes
Enclosed indoor bathing area
SaunaYes
Dry heat sauna room
Cold BathYes
Cold water plunge bath, typically used after sauna
OnsenNo
Uses natural hot spring water
Highlights
Electric Bath
Jet Bath