One of the pricier options when it comes to onsen in Tokyo, Seijo spa makes up for it in spaciousness and beauty. With a fitness club above and a Uniqlo below, separate yourself from your physical location and transport yourself to a world of relaxation. There are foot baths, vibra-baths  jet bath, and outdoor baths, as well as three types of sauna to sweat it out in. The onsen draws naturally black water from 1,200m below ground which has a slight slipperiness due to the alkaline content and is believed to be especially good for the skin. They also offer a range of beauty treatments if you’re feeling like a treat.

Weekdays: 1,290 yen   |  Weekends: 1,710 yen   |   Towel set included

Weekday 60 minutes course: 860yen   |    Weekend 60 minute course: 1,080 yen   |   Towel set not included

Weekday Morning 10am – 12pm: 1,080 yen    |    Weekend Morning 7am – 10am: 500yen

Weekday Night – 9pm onwards: 860 yen    |    Weekend Night: 1,080 yen