Onsen Etiquette: A First-Timer's Guide (Hakone, Near Tokyo)

For many visitors, the onsen (hot spring) is the single most intimidating part of a trip to Japan. You bathe naked, in public, with strangers, and there's a long list of unwritten rules. Get one wrong and you feel like you've offended an entire room.

Here's the good news: the rules are simple once someone actually explains them, and Japanese people are far more relaxed about honest mistakes than nervous travelers assume. I grew up going to onsen. Let me walk you through it — and the best place to try your first one is Hakone, an easy 85-minute ride from Shinjuku on the Odakyu Romancecar.

This is the reward: a steaming open-air bath (rotenburo). Hakone is full of them, many with mountain or valley views.

Why Hakone for Your First Onsen

Hakone is the most beginner-friendly onsen region in the Kanto area around Tokyo. It's close, it's used to international visitors, and it has a huge range of baths — from grand ryokan to tattoo-friendly public baths and private rooms you can rent by the hour. You can do it as a long day trip, but staying one night in a ryokan is the real experience.

This is where Hakone's hot water comes from — Owakudani, a still-active volcanic valley. The whole region sits on a geothermal source.

The Single Most Important Rule

You wash your body completely before entering the bath. The onsen water is for soaking, not cleaning. Everyone shares it, so you enter already clean.

There's a washing area lined with low stools, handheld showers, soap, and shampoo. Sit on a stool, wash thoroughly, and rinse off every trace of soap before you go near the bath. This one rule matters more than all the others combined.

The Order of Things

1. Pay and enter the correct changing room. Red curtain (暖簾) is women, blue is men. Look for 女 (women) and 男 (men).
2. Undress completely in the changing room. No swimsuits. Put everything in a basket or locker.
3. Bring only your small towel into the bathing area. Leave the large towel behind for drying off later.
4. Wash at the stools. Sit, soap up, rinse completely.
5. Soak in the bath. Ease in slowly — the water is hot (40–42°C).
6. Don't put your towel in the water. Fold it and rest it on your head, or set it on the edge.
7. Rinse off lightly and dry with the small towel before walking back into the changing room, so you don't drip everywhere.

Things That Quietly Matter

• No swimming, splashing, or loud talking. An onsen is for quiet relaxation, not a pool.
• Tie up long hair so it doesn't touch the water.
• Don't take photos. Phones in the bathing area are a serious no.
• Hydrate. The baths are hot; drink water before and after.

What About Tattoos?

This is the question I get most from visitors. Traditionally, many onsen ban tattoos because of their historical link to organized crime. It's an outdated rule, but it still exists in some places.

If you have tattoos, you have three good options: look for a "tattoo-friendly" onsen (Hakone has several, and they're easy to find online), book a private bath (called kashikiri, or a ryokan room with its own onsen), or cover small tattoos with a waterproof patch. Don't risk ignoring a posted ban — just plan ahead.

The Part No One Tells You

The bath is only half of it. The real magic is what comes after. In a Hakone ryokan, you change into a yukata (light cotton robe), slip on wooden sandals, and wander between baths feeling lighter than you have in months. The next morning, you sightsee.

The other half of a Hakone trip: Lake Ashi, the floating red torii of Hakone Shrine, and Mount Fuji on a clear day. Soak in the morning, sightsee in the afternoon.

That contrast — the hot, quiet soak followed by a lake cruise under Mount Fuji — is one of the most purely relaxing things the Tokyo area offers. Don't let nerves about the rules keep you from it.