
A rare onsen that uses 100-percent natural hot spring water pumped directly from the source.
It can be hard to find a good, authentic, rustic onsen hot spring complex that isn’t geared towards tourists in Tokyo, so whenever we find one we’re always tempted to keep it a secret. However, one of our most recent finds turned out to be so good it’d be a shame not to share it, so shhhh…let’s keep this a beautiful secret between ourselves.
Called Maenohara Onsen Sayano Yudokoro, this onsen is hardly known beyond local circles, but it has a lot of perks that make it a gem worth visiting. One of the main drawcards is it’s said to be the only onsen in Tokyo’s 23 wards that uses 100-percent natural hot spring water pumped directly from the source without any filtration or alteration.
▼ Then there’s the location, as it’s just 30 minutes by train from downtown Tokyo to Shimura-Sakaue Station on the Mita line, with the onsen being a 10-minute walk from the exit.
The scenery here isn’t that different from other residential areas in Tokyo, so it’s hard to believe that you’re headed towards a hot spring that flows direct from the source.
However, as you approach the destination, you’ll see the sign for “さやの湯処” (“Sayano Yudokoro”), in front of a large building beside an equally large parking lot.
The entrance immediately gives you the sense that you’re about to enter another world, and that sensation continues when you step inside.
In the rest area where people unwind and relax, usually post-bath, time seems to flow differently. The concrete jungle seems worlds away as the calm and laid-back atmosphere transports you to another place and time, and the beautiful Japanese garden is the centrepiece to this experience.
This beautifully manicured area draws the eye out towards an invisible horizon, making you feel an abundance of time and space, and there are a number of other green areas scattered around the hot spring facility.
There are a wide variety of baths to choose from, with open-air types as well as bedrock styles, pot-shaped baths, and hydro-massage options. Those containing olive-green water have minerals added to them, with a kelp-like scent due to the high salt concentration, while the milky white baths are the pure, unadulterated types, pumped straight from the source underground to nourish both your soul and your skin.
With sauna and massage rooms on site, you could easily spend half a day here, and if you arrive in the afternoon, you get to enjoy the beauty of the Japanese garden both in the daylight and after sundown.
All this pampering can work up an appetite, and thankfully the complex has a great restaurant, with juwari soba (100-percent buckwheat soba) being the signature dish.
▼ There’s a lot to choose from on the menu, and there are no bumped-up tourist prices here.
Guests can even reserve private rooms to dine or relax in, with room charges starting at 2,200 yen (US$14.89) for two hours, and from 1,100 yen for each additional hour thereafter.
▼ Some of the rooms have views of the Japanese garden.
Those wanting to simply use the baths can do so after paying the admission fee of 930 yen for adults on weekdays, or 1,300 yen for adults on weekends and public holidays (primary school-aged children and under pay 600 yen on weekdays and 900 yen on weekends and public holidays).
During busy times, guests may be charged 100 yen per hour after five hours of admission, but most people are able to fit in a bath, a meal and a wind-down within this time frame so you won’t ever feel like you’re being rushed out the door. Plus, time moves extra slowly here, so you can sit back and let your troubles wash away as you soak in the traditional atmosphere of one of Tokyo’s best-kept secrets.
Site information
Maenohara Onsen Sayano Yudokoro / 前野原温泉さやの湯処
Address: Tokyo-to, Itabashi-ku,
Maenocho 3-41-1
東京都板橋区前野町3-41−1
Open: 9:00 a.m. to midnight (last entry 11:00 p.m.)
Closed: Several times throughout the year for maintenance
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 ]













2018 Top 20 Day Trip Onsen Hot Spring and Spa Ranking in Japan
Japanese onsen hot spring comes with 99 types of soy sauce for visitors
Secret hot spring onsen in Japan is a hidden gem waiting to be discovered by tourists
Hidden onsen hot spring near Tokyo is waiting to be discovered by foreign tourists
Secret tent onsen in the forest is one of the most unusual hot springs in Japan
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
Otaku crime: Kyoto police arrest man for selling counterfeit ultra-rare Yu-Gi-Oh! card
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
Starbucks Japan opens new Kyoto store in Place of Scenic Beauty
The best Japanese cosplayers from Day 3 of Winter Comiket 2019【Photos】
Super-spicy Tokyo ramen served in a 572-degree Fahrenheit bowl? Yep, we’ll eat that!【Taste test】
Wanna win a Nintendo Switch? You can with this gigantic gacha capsule machine in Nara【Photos】
Thousands of anime fans gather for public screenings of new Dragon Ball episode in Latin America
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
Is Japan’s Crab-shaped Cup Ramen Timer worth the hype?
Pizza Hut Japan teams up with creator of one of the country’s best kinds of ramen for ramen pizza
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
The top 10 graduation songs in Japan as chosen by current Japanese high school students
Pikachu and Eevee become handmade Lladró porcelain sculptures to celebrate Pokémon’s 30th birthday
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
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
Starbucks Japan releases new drinkware and goods for Valentine’s Day
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
Japan’s newest Shinkansen has no seats…or passengers [Video]
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
Onsen trivia! Finding the hottest, highest, and healthiest hot springs in Japan
Hot Spring Lovers Rejoice! Three Unique Onsen Resorts to Try Before You Die
Hidden gem in Tokyo: Black water hot spring hotel
Onsen hot spring with Mt Fuji views has one of the best rotenburo in Japan
New hot spring found in Tokyo as 80-year-old bathhouse makes a happy discovery
Hyotan Onsen – Japan’s only hot spring with three Michelin stars
Love hot springs and tattoos? You won’t want to miss this onsen paradise near Tokyo!
Soak in a secret Japanese onsen hot spring…in a dilapidated old building
Hot springs website reveals the most popular user-picked onsen in all of northern Japan
Famous hot springs of Beppu now offering portable inflatable onsen with authentic Beppu water
Japanese onsen stand is part gas station, part hot spring vending machine
Solaniwa Onsen: Kansai’s largest hot spring theme park is also one of its most beautiful
One of Tokyo’s best hot spring complexes is closing for good
Capybara hot springs are back: Rodent-friendly onsen now available all over Japan