Do You Always Wear a Swimsuit at Public Baths, Furo, or Hot Springs?

Not sure when it’s okay to wear your hot spring swimwear? Here’s a quick guide to understanding the differences between public baths, furo, and hot spring resorts and what to wear where.

1. Public Bath (Sentō)

• Community-based, focused on bathing and hygiene

• Always enter naked (swimsuits not allowed)

• Tattoos often not accepted

2. Furo (Bath Area or Private Tub)

• Means “bath” in Japanese, sometimes private or in hotels

• If shared: no swimsuits

• If private: swimsuits usually okay

3. Hot Spring Resorts

• Natural mineral water used for soaking

• Three common areas:

  • Gender-separated naked baths

  • Private family tubs (swimsuits optional)

  • Outdoor spa zones (swimsuits often required)

How to Know If Swimsuits Are Allowed?

• Check signage or ask staff

• Don’t rely on the name focus on the type of space