Onsen Etiquette for Foreign Visitors: Complete Guide (2026)
Updated June 2026 · 6 min read
Visiting an onsen (hot spring) is one of Japan's most rewarding experiences — but there are rules and customs that differ significantly from Western bathing culture. Follow this guide and you'll have a seamless, relaxing experience.
1. The Basic Rules
❌ Never Do This
- Enter the bath without washing your body first — always wash at the shower stations before entering the pool
- Bring towels into the water (small towels can be folded on your head or left at the bath's edge)
- Swim or splash — onsen are for quiet soaking, not swimming
- Use soap or shampoo in the onsen pool itself
- Take photos inside the bath area
- Enter if you have open wounds or contagious skin conditions
✅ Always Do This
- Shower thoroughly before entering the onsen pool
- Keep your voice low — onsen are quiet, relaxing spaces
- Tie long hair up so it doesn't touch the water
- Rinse the shower area after use
- Hydrate well before and after soaking — hot water is dehydrating
- Start with shorter soaks (5–10 minutes) if you're not used to the heat
2. Types of Onsen
Public bath (sento)
Indoor bathing facility, usually in cities. Not always natural hot spring water. Very affordable (¥400–600). Great for a local experience.
Day bath (higaeri onsen)
Visit an onsen resort or ryokan for the day without staying overnight. Typically ¥800–2,000. Most onsen towns offer this.
Outdoor bath (rotenburo)
Open-air onsen surrounded by nature. Particularly spectacular in snow (yukimi onsen). Available at most hot spring resorts.
Private bath (kashikiri)
A private room with your own onsen bath, bookable by the hour. Ideal for couples or those with tattoos. Available at most major onsen ryokan.
Mixed-gender bath (konyoku)
Rare and increasingly uncommon. Usually require wearing bathing clothes. Check in advance.
3. Tattoo Policies
Many onsen in Japan prohibit guests with visible tattoos. This policy stems from historical associations with organized crime, though it is gradually changing as Japan welcomes more international tourists.
- Large public baths: Most still prohibit tattoos. Check the facility's policy before visiting.
- Private baths (kashikiri): Almost always permitted. Book a private bath if you have tattoos.
- Tattoo-friendly onsen: Growing in number, especially in tourist-heavy areas. Search for "tattoo-friendly onsen" + your destination.
- Small tattoos: Some facilities allow small tattoos to be covered with waterproof bandages — ask at reception.
4. What to Bring
- Small towel: Usually available for rental (¥100–300) or purchase at the facility. Some ryokan include them.
- Soap & shampoo: Available at shower stations in most facilities. You don't need to bring your own.
- Nothing valuable: Use the lockers provided. Leave jewelry and electronics in your room.
- Water: Drink before and after. Some facilities have water dispensers in the changing area.
FAQ
Do I have to be completely naked at a Japanese onsen?
Yes, at traditional gender-separated onsen. Swimwear is not permitted in most onsen as it's considered to introduce soap and chemicals into the water. Private baths (kashikiri) and some newer mixed-gender outdoor baths may allow swimwear — check in advance.
What is the difference between onsen and sento?
An onsen uses natural geothermal spring water with specific mineral content, regulated by Japanese law. A sento is a public bathhouse that uses regular heated water — not natural spring water. Onsen are found near volcanic or geothermal areas; sento are city neighborhood bathhouses. Both follow similar etiquette rules.
Which are the best onsen towns in Japan?
Top onsen destinations include Hakone (near Tokyo), Beppu (Oita, Kyushu — highest volume of springs), Kinosaki Onsen (Hyogo), Nyuto Onsen (Akita, remote and scenic), Ginzan Onsen (Yamagata, historic), Noboribetsu (Hokkaido), and Kusatsu (Gunma). Each has a distinct character and spring chemistry.