This article explores the Japanese bath, or Onsen, and its integral role in Japanese culture and history. It discusses the types of baths, their benefits, how to prepare for one, what to expect during a visit, safety tips, and how long you should stay in one. It is important to shower thoroughly before entering the pool, wear appropriate swimwear, avoid swimming if feeling unwell and drink plenty of fluids while bathing. The recommended length of time for a traditional Japanese bath is 15 minutes at one time with frequent breaks throughout your session.