Onsen Culture 101: Etiquette and the Best Hot Springs in Japan

Soaking in a steaming hot spring while mountains or sea stretch out in front of you is one of the great pleasures of traveling in Japan. Onsen, the Japanese word for hot springs, have been part of life here for more than a thousand years, and visiting one is a way to experience local culture as much as relaxation.

For first-timers, though, the customs can feel intimidating. Many Japan cruises include ports near famous hot spring regions, so it is worth knowing how it all works before you go. Here is a simple guide to onsen etiquette and some of the best places to try one.

What Is an Onsen?

An onsen is a bathing facility fed by natural geothermal water. The water is rich in minerals, and each spring is said to have its own qualities. Onsen can be indoors or outdoors, large or small, and some are in the middle of cities while others are tucked into remote mountain valleys.

You may also hear the word sento, which refers to public bathhouses that use heated tap water rather than natural springs. The etiquette is largely the same.

The Basic Rules

Onsen etiquette is simple once you know it, and following it shows respect for other bathers.

1. Wash before you enter. Sit at a washing station, use soap and shampoo, and rinse thoroughly. The bath is for soaking, not for cleaning.
2. Bathe without clothing. Swimsuits are not allowed in traditional onsen. Most are separated by gender.
3. Keep your towel out of the water. Place the small towel on your head or on the edge of the bath.
4. Tie up long hair. Hair should not touch the water.
5. Keep your voice low. Onsen are places for calm and quiet.
6. Do not swim or splash. Move slowly and gently.
7. Dry off before going back inside. Wring out your towel and wipe yourself down before entering the changing area.

Dealing With Tattoos

Tattoos have traditionally been associated with organized crime in Japan, and some onsen have rules against them. Many places have become more flexible, and some offer private baths. If you have tattoos, check the policy in advance, or look for places that welcome visitors with tattoos. A cover sticker may be allowed in some locations.

Private Baths and Alternatives

If the idea of a shared bath makes you uncomfortable, you have options.

• Private family baths: Many ryokan and onsen towns rent private baths by the hour.
• Foot baths: Free or low-cost foot baths, called ashiyu, are common in hot spring towns.
• Rooms with private baths: Some inns offer rooms with their own hot spring bath.

Famous Onsen Regions

• Hakone: Close to Tokyo and known for views of Mount Fuji, with a wide range of inns and public baths.
• Beppu: A city in Kyushu with an enormous number of hot springs, including the colorful “hells” that are meant for viewing rather than bathing.
• Kusatsu: A mountain town in the central part of Japan, famous for its steaming spring waters at the town center.
• Dogo Onsen: One of the oldest hot springs in Japan, with a historic wooden bathhouse in Matsuyama.
• Noboribetsu: A hot spring town on Hokkaido with dramatic volcanic scenery.

What to Bring

Many onsen provide basic items, but it helps to be prepared.

• A small towel: For wiping and for modesty on the way to the bath.
• A larger towel: For drying off afterward.
• Toiletries: Some places supply soap and shampoo, but not all.
• Cash: Smaller baths may not accept cards.
• A hair tie: For long hair.

Health Tips

• Hydrate. Hot water can make you dehydrated, so drink water before and after.
• Do not stay in too long. Ten to fifteen minutes at a time is plenty.
• Avoid soaking if you feel unwell. Hot water is not for everyone.
• Take breaks. Step out and cool down if you feel lightheaded.
• Check with your doctor if you have a health concern. Hot bathing is not recommended for some people.

After the Bath

A Japanese bath is often followed by small rituals. Many facilities sell cold milk or other drinks, which people enjoy after bathing. Some have lounges where you can rest and cool down. Take your time. Part of the experience is the slow, relaxed rhythm.

A Tradition Worth Trying

The first time can feel unfamiliar, but most visitors find that the experience becomes comfortable quickly. Once you settle into the warm water, the steam, and the quiet, it is easy to see why onsen have remained a beloved tradition.

For more on hot spring regions and travel planning, Visit Japan provides helpful resources from the national tourism organization.