I was just getting used to the idea of bathing in wine and sake, but bathing in a pool of flesh eating fish?  Yeah, not my idea of relaxation.

At such a spa, many Garra Rufa, a type of small tropical fish, also nicknamed Chinchin Yu, nibble fish or simply doctor fish, are put in hot springs. As they can live and swim freely in at least 43-degree-hot waters, they are naturally used for the treatment of skin diseases in such spas.

When placed in the spa, these fish can feed themselves on the dead cells of the human body, since they only consume such cells, leaving the healthy skin of the human body to grow. The whole process is reportedly free of pain. It won't hurt and the bather might feel a pleasant tingling on his or her skin.