
Bathing here is a once-in-a-lifetime opportunity you don’t want to miss.
Back in 1987, June 26 was officially registered as “Rotenburo Day” (“Open-air Bath Day“) in Japan, due to a play on the syllables “ro” (which sounds like “roku” or “six”), “ten” (which is the word for a decimal point used between numbers), “bu” (which is an alternate reading of “fu”, or “two”), and “ro” (“six”)”.
In honour of this special occasion, our reporter Seiji Nakazawa has been searching high and low for the best rotenburo to introduce to our readers, and after hours of online research and lengthy discussions with friends and work contacts, the most popular recommendations all pointed to a hot spring in Shizuoka Prefecture with a glorious view of Mt Fuji.
▼ So Seiji packed a rucksack and headed out there.
The onsen hot spring is easy to get to on a day trip from Tokyo, by simply hopping on a train to Kanagawa Station and from there, taking the JR Gotemba Line to Ashigara Station in Shizuoka. The journey is incredibly relaxing, taking you out of the urban jungle and into rural fields and mountains, so that when you hop out at the station, you already feel as if time has slowed down.
Ashigara Station is unstaffed and in a quiet location, and from here it gets even quieter, as you need to follow a mountain path to get to the onsen, which is called Choumin Ikoi no Ie Ashigara Onsen (“Townspeople Relaxation House Ashigara Onsen“).
▼ Although the hot spring is generally known as “Ashigara Onsen”, the official name lets people know that this is a town-run onsen.
Just because it’s run by the town doesn’t mean it’s a cheap place in need of repair — in fact, it’s the complete opposite, because the building is clean, modern and sturdy, made of reinforced concrete. This is a town that clearly takes good care of its residents by providing them with such a fantastic-looking facility, and the modern vibe and relaxed atmosphere continues once you step through the doors.
This is where you’ll find a thoroughly modern ticket machine, where visitors pay the bathing fee (600 yen [US$3.76] for adults), and purchase any necessary extras, like razors, towels, cleansing sets and sauna hats. Bathing fees are cheaper for nearby residents, people who are members of the Shizuoka Prefecture Municipal Mutual Aid Association, and students from Koyama High School, which is right in front of the building.
The bathing fee gets you three hours in the building, which is great value for 600 yen.
That value turned out to be even better once Seiji actually set foot inside the bathing area. There was one large bath, and the sauna room was big enough to accommodate about 12 people. One entire wall of the onsen was made of glass, giving you a stunning view of Mt Fuji, and stepping out to the open-air rotenburo made Seiji gasp in delight, because the view of the mountain was absolutely breathtaking.
▼ Seiji wasn’t allowed to take photos from the rotenburo, but he says the view looked just like this photo he snapped from outside.
It’s common for sento (local public baths) around the country to have a painted mural of Mt Fuji on one wall, so to see the real thing while soaking in hot water was like a dream come true for Seiji. Making the view even more impressive is the fact that you can see the entire breadth of the mountain, right down to its base, and Seiji says it was nothing short of spellbinding.
In fact, he says this might be the first time he’s ever seen the shape of the mountain so beautifully, from end to end, and it’s a memory that will stay with him a lifetime.
▼ Seiji, recording his feelings of awe at the hot spring location that will forever be etched in his brain.
Mt Fuji can be viewed from a lot of places, but seeing it from this distance, and with absolutely nothing obscuring the view, will make you really appreciate the true beauty of the mountain.
▼ It even looks great from the carpark.
Seiji says this is a once-in-a-lifetime experience that locals and visitors to Japan ought to treat themselves to at some point in their lives. So next time you’re looking for a jaw-dropping view of Mt Fuji, give the overcrowded Lawson a miss and head over here instead. Anyone can say they’ve taken a photo of themselves outside the Mt Fuji Lawson, but how many people can say they’ve bathed naked in front of the mountain? That’s the real Japanese experience everyone should be aiming for!
Hot spring information
Choumin Ikoi no Ie Ashigara Onsen / 町民いこいの家 あしがら温泉
Address: Shizuoka-ken, Sunto-gun, Oyama-cho, Takenoshita 456-1
静岡県駿東郡小山町竹之下456-1
Hours: 10:00 a.m.-9:00 p.m. (last entry 8:00 p.m.)
Closed Tuesdays (Open if Tuesday is a holiday, and then closed the next day)
Website
Photos ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]








Tokyo day-trip hot springs: Beautiful Mt. Fuji-view bath is just one highway bus stop from Shibuya
Got tattoos, but still want to experience a Japanese hot spring? It’s no problem here!
The top five best multiple-hot-spring hotels in all of Japan
Photos of “everyday life” in the town next to Mt. Fuji look like a beautiful fantasy world
Japan’s second-most-beautiful day-use hot spring might be underrated【Photos】
Family Mart releases huge range of cute sweets for Cat Day in Japan
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Downloads of 39-year-old Guns N’ Roses song increase 12,166 percent thanks to Gundam
Solaniwa Onsen: Kansai’s largest hot spring theme park is also one of its most beautiful
Huge Evangelion Unit-01 head appearing in lights in Japan to celebrate anime’s 30th anniversary
Here comes a new katsudon: ice cream katsudon?!?
Pikachu Outbreak 2018 photos! Pikachus parade through Yokohama, bust out dance moves at night
Studio Ghibli adds new Kiki’s Delivery Service notebook and ceramic cake case to stores in Japan
A spotlight on Japanese singles figure skating: Jumping into the 2026 Olympics【Pt. II】
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
Yokai are descending upon Tokyo this spring in the latest immersive art experience
Three beautiful places to see Japan’s plum blossoms after starting your day in downtown Tokyo
Cherry blossom forecasts map shows Japan’s OTHER sakura season is starting right now
New Studio Ghibli stamps leave an impression on your stationery…and your heart
Japanese women sound off on their minimum height requirements for a husband【Survey】
Kyoto planning surprise late-night inspections of Airbnb-style rentals to fight overtourism
Japanese movie theater chain’s popcorn earns highest Grand Prix quality certification
Japan’s most famous Mt. Fuji view park cancels cherry blossom festival because of overtourism
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Japan releases first official sakura cherry blossom forecast for 2026
10 times to avoid traveling in Japan in 2026
Archfiend Hello Kitty appears as Sanrio launches new team-up with Yu-Gi-Oh【Pics】
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
China’s don’t-go-to-Japan warning looks to be affecting tourist crowds on Miyajima
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Studio Ghibli releases new “komorebi” plush toys from Princess Mononoke and Spirited Away
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Secret unstaffed hot spring in Japan will make you feel like you’ve been spirited away
Does this Dormy Inn near Mt. Fuji offer the best business hotel breakfast in all of Japan?
Secret tent onsen in the forest is one of the most unusual hot springs in Japan
Angry Japanese mayor wants off-season Mt. Fuji hikers to pay costs of their rescue operations
Cost to climb Mt. Fuji doubles, some hikers may have to pass test before getting on trail
7 great places to see Mt. Fuji from without having to climb it
Thirty-Six [ ________ ] of Mt. Fuji Project has a view of conserving the iconic mountain
2018 Top 20 Day Trip Onsen Hot Spring and Spa Ranking in Japan
Two Americans decide to hike Mt. Fuji before trails open, both need rescues on back-to-back days
Love hot springs and tattoos? You won’t want to miss this onsen paradise near Tokyo!
Three dead bodies found near summit of Mt. Fuji
Fourth dead body found on Mt. Fuji in less than one week from climbing season start
New hot spring found in Tokyo as 80-year-old bathhouse makes a happy discovery
Solaniwa Onsen: Kansai’s largest hot spring theme park is also one of its most beautiful
Love Japanese hot springs? At Nakadake Onsen in Hokkaido, you can dig your own!
Leave a Reply