This article explores the history of mixed gender baths in Japan and the different types of onsen available. It also discusses private and public onsen with mixed gender baths, rules and etiquette for visiting an onsen, and FAQs. Mixed gender bathing has been part of Japanese culture for centuries, with popular sentō during the Edo period allowing men and women to bathe together in public settings. Private onsen typically offer both male-only and female-only bathing areas, while some may also offer mixed gender options for couples or families who wish to bathe together. Public onsen can be found throughout Japan at resorts or natural outdoor areas such as mountains or beaches, but these types of hot springs are not very common so it’s best to check ahead before visiting one if you’d like access to a mixed gender bath area during your trip. Rules and etiquette should always be followed when visiting an onsen to ensure everyone enjoys their experience safely and respectfully.