Japan is famous for its onsen (温泉, hot springs)—natural geothermal baths that have been a key part of Japanese culture for centuries. Whether you’re looking for a relaxing retreat in the mountains or a seaside onsen with breathtaking views, Japan offers countless options.
This guide will introduce you to the history of onsen, different types, how to enjoy them properly, and the best onsen destinations in Japan.
1. What is an Onsen?
An onsen is a natural hot spring bath that draws mineral-rich water from underground. Due to Japan’s volcanic activity, there are thousands of onsen across the country, each with unique water properties that offer various health benefits.
Onsen vs. Sento: What’s the Difference?
• Onsen (温泉) – Uses natural hot spring water with minerals.
• Sento (銭湯) – A public bathhouse that uses heated tap water.
2. Benefits of Onsen Bathing
The minerals in onsen water are believed to have therapeutic effects, including:
✔️ Relaxing muscles and relieving fatigue
✔️ Improving circulation and metabolism
✔️ Soothing skin conditions
✔️ Easing joint and nerve pain
Each onsen has different mineral compositions, offering unique healing properties:
• Sulfur onsen (硫黄泉) – Good for skin health and detoxification.
• Iron onsen (鉄泉) – Helps with anemia and blood circulation.
• Carbonated onsen (炭酸泉) – Improves circulation and lowers blood pressure.
3. How to Enjoy an Onsen: Onsen Etiquette Guide
① Wash Before Entering the Bath 🚿
• Use the shower stations to wash your body thoroughly with soap and rinse well.
• Do not enter the bath while still soapy!
② Enter the Bath Slowly and Respectfully
• Ease yourself in gently to adjust to the temperature.
• Avoid splashing or swimming in the bath.
③ Keep Towels Out of the Water 🚫🛁
• Most people place small towels on their heads while bathing.
• If your towel gets wet, wring it out outside the bath.
④ No Diving, Swimming, or Loud Talking
• Onsen is a place for relaxation, so keep your voice low.
⑤ No Photography in the Bath Area 📷🚫
• To respect privacy, photography is not allowed inside the bathing areas.
⑥ Tattoos May Not Be Allowed (But There Are Exceptions!)
• Some traditional onsens prohibit tattoos, as they are historically associated with yakuza.
• Many places now accept tattoos or provide cover stickers for small tattoos.
