I didn't know that there have been the public bath here the place near my workplace and then it is in a building. There is a list the price and it says from 80 yen per child to 460 yen per adult. When you visit Japan, please remember that trying a public bath is one of attractive events to know a Japanese culture. Don't forget that depending on the place, people with TATTOOs might not be allowed to take a public bath. So just in case, you might want to have something like a rash guard with you to hide them temporally.