Ichi no yu (一の湯) is located in Numabukuro (Seibu Shinjuku line)  at only a few min walk from the station. Ichi no yu had been renewed a few years before, the interior is truly gorgeous and spacious.

The baths:
Aroma bath, massage bath, aromatic steam sauna free to use (I really recomend it for detoxifying body and to enhance skin beauty), outside stone bath (only for men side).

The art:
Delicate ceramic mosaic tiles art representing Fuji-san in the middle of the two bathroom and flying Japanese crane. There is some touch of gold that make it very precious.

Location:
Tokyo, Nakano-ku, Numabukuro 1-39-10

Plus:
Massage chair
Anything you need to have a great bath, you can use it for free (body soap, shampoo, make-up remover, skin lotion, moisturizer etc..).
In the changing room you would find some clothes and object free to take, it is an exchange system between customers.

Website: 
http://ichino-yu.jp/

This post is also available in: Japanese