Different Ways to Enjoy Hot Springs in Japan

Tokyo Culture Hokkaido 2019.11.13
Onsen, Sento, Rotenburo, heard of any? Don't know anything about it yet? Don't worry, we will take you through the steps that you'll need to know to enjoy the spa culture in Japan.


※Regarding Our Travel Information During the Coronavirus Outbreak.
Due to the COVID-19 outbreak and efforts to prevent the spread of infection, some facilities may have altered opening dates and times, be partially closed, or have limited menus. Before leaving for your destination, please check its official website for the latest information. In areas still in some form of lockdown, we recommend you avoid going out unless necessary. Look out for more Japanese travel information to plan future trips, new every day on Japankuru!



The Spa/Hot Spring Culture in Japan

Japan being a country with many volcanic areas, you can find hot springs all over the islands, many of which have been enjoyed from long ago.

Here we've listed a few of the types of hot springs you can enjoy in Japan.
The Standard Onsen 【温泉:おんせん】
Onsen, meaning hot springs, would be the most commonly known type of spa in Japan.

The definition is simple:
An onsen either
(1) is above 25°C (77°F) in its natural state flowing out from the ground or
(2) contains a certain amount of particular mineral.

Want to see the full definition? The Japan Spa Association Hot Spring of Japan has a detailed definition of what substances may be contained in a hot spring here. So, any place that has a certain type of hot spring that meets the condition above can be called an onsen! Places like public baths sometimes have onsens, but a lot of the times, they are just ordinary baths - they don't meet Japan's strict definition!

The top three onsens in Japan  said to be the Arima Onsen (in Hyogo), the Kusatsu Onsen (in Gunma), and the Gero Onsen (in Gifu). If you're in Japan, you might want to try a hot spring at least once!
Go Outdoors! The Roten-buro【露天風呂:ろてんぶろ】
"Rotenburo" simply means a bath located outside. It could be just a normal bath, or it could be an onsen.
The best part about this is that you get to feel the seasons and enjoy nature while you are bathing. In many cases, places that offer indoor spas also have a rotenburo as well. Just like this one in the Unazuki area in Toyama.

What part of Japan has the most famous outdoor onsen?
That depends on if you want to choose based on the quality of the spa, or you prefer the scenery, or if you care about other things altogether. But Japanese spa-ranking websites often say that Kinugawa onsen comes third place, followed by Ito onsen, and finally Atami onsen.
The Public Baths: Sento【銭湯:せんとう】
Public baths (sento) are easier to access, as there are also many of them in major cities. Here are a few lists of sento by city (in Japanese) for those who would like to explore the world of public baths.
- Hokkaido
- Tokyo Sento Map
- Kyoto
- Osaka
- Fukuoka

The difference between a sento and an onsen is that sento are just public baths, while onsen are natural hot springs and contain particular minerals. We've described the differences between a sento and an onsen in more detail here, so if you would like to know any details take a look!

There are also what are called "Super Sento", where they offer more services than just baths. For example, we've been to an onsen theme park in Chichibu, Saitama with shops and food courts located within the same venue. This website called Supersento.com allows you to search through all the super sentos in Japan.
Stay over a night: The Ryokan 【旅館:りょかん】
The ryokan is a type of a traditional inn in Japan, and a lot of the time they feature rooms with tatami mats and communal baths - usually a natural hot spring. The benefit of going to a ryokan is that you get to relax and enjoy your own private room after you finish your bath, enjoy local specialty meals, and just sleep when you want to. (Just like our experiences in Tendo or Unazuki in Kurobe!)
All to yourself: The Kashikiri 【貸切:かしきり】
If you don't really want to share a bath with others, don't worry, there's an option for you too! If you get a kashikiri bath, meaning a private rental, you can enjoy a nice private bath time all to yourself, or just share that experience with your family. Some ryokans offer this service, or even have private baths built into the balcony of guest rooms.
Onsen Manners
If you are going to enjoy a bath in Japan, don't forget that there are some rules and safety precautions that you will need to stick to. Most of them are common sense, and they're just there to make sure you stay safe while bathing and avoid bothering other bathers.  You can read up on the details, and clearly explained safety precautions and manners, in English right here.

The Tattoo Friendly Options

Although many places do not allow people with tattoos to enter hot springs, or even the entire venue in the worst cases, there are places that welcome tattooed visitors as well. We've been to a few places around Japan where they have tattoo-friendly hot springs, but the Japan National Tourism Organisation also has a list of links where you can find tattoo-friendly spas.
Hot springs in Japan are deeply connected to its culture, and are clearly a part that a lot of people are interested in at the moment, including people outside of Japan. 
If you're a real onsen lover, you can also be qualified to become an onsen instructor, onsen sommelier, or even an onsen coordinator if you want to go that far.

People also go out to find their own onsens as well. Sometimes you can find them by a river, near the ocean, or in the mountains. There are still many that haven't been discovered yet as well. So if you're up to it, you can even look for your own (stay safe, though, they can be hot)!

There's also the unique Konyoku culture as well.

Like we said in the beginning, you can find onsen all over Japan.
Related Article
Question Forum