Utopia Shiratama Onsen is a neighbourhood sento in the Kyobashi-Gamo area of Joto ward, founded in 1963 and now run by its third generation. Its high-temperature Bona sauna gets an automatic löyly every ten minutes, and its ice bath, which the owners call a Japanese first, is kept at 15°C by dropping in ice. An outdoor rest area has 12 chairs, and there are carbonated, electric and open-air baths. Entry is ¥600 plus ¥300 for two hours of sauna; open 6:00 to 1:00 every day. Tattoos are accepted.