Surrounded by the gentle flow of a mountain stream and rising wisps of hot spring steam, Shima Onsen is a serene hot spring town nestled in the hills of Gunma Prefecture. Known for centuries as a healing spring believed to cure all ailments, it welcomes travelers with a harmonious blend of history and nature.
This guide introduces how to get to Shima Onsen, travel tips for first-time visitors, and answers to common questions—making it a safe and inviting hot spring destination, especially for solo travelers and first-time visitors to Japan. Don’t worry if you don’t speak Japanese—this article has everything you need.
Why not take a peek into this gentle town, where warm waters and changing seasonal landscapes await? We’ll gently guide you through your journey to Shima Onsen.
Contents
How to Get to Shima Onsen for First-Time Visitors
Check the latest weather forecast before your visit: [weathernews ]
By Train
From Tokyo Station
Take the Joetsu Shinkansen “Toki” to Takasaki Station (approx. 1 hour)
Transfer to the JR Agatsuma Line to Nakanojo Station (approx. 1 hour 20 minutes)
Take a Kanetsu Kotsu bus from Nakanojo Station to the Shima Onsen bus stop (approx. 40 minutes)
Total travel time: approx. 3 hours 10 minutes
From Shinjuku Station
Take the JR Limited Express “Kusatsu” directly to Nakanojo Station (approx. 2 hours 30 minutes)
From Nakanojo Station, take a Kanetsu Kotsu bus to the Shima Onsen bus stop (approx. 40 minutes)
Total travel time: approx. 3 hours 10 minutes
From Takasaki Station (Gunma)
Take the JR Agatsuma Line to Nakanojo Station (approx. 1 hour 20 minutes)
From Nakanojo Station, take a Kanetsu Kotsu bus to the Shima Onsen bus stop (approx. 40 minutes)
Total travel time: approx. 2 hours
One Point Advice
Shima Onsen Hours, Admission & Facility Info
Admission: Strolling through the Shima Onsen area is free. Fees apply for ryokan stays and day-use hot spring baths.
Hours: Varies by facility, but day-use baths typically operate from 10:00 to 16:00.
Closed: Many facilities are closed on irregular days (some close during the winter season).
Official Travel Guide: https://nakanojo-kanko.jp/en/
Best Things to Do in Shima Onsen
Sekizenkan｜Japan’s Oldest Wooden Ryokan
A true symbol of Shima Onsen , Sekizenkan is a wooden ryokan with over 300 years of history . Cross the iconic red Keiun Bridge to reach the main building, which feels like a scene from a samurai-era film. Inside, visitors can explore historical corridors and bathhouses, some designated as Registered Tangible Cultural Properties. Day-use bathing is available even for non-guests, allowing anyone to experience this timeless retreat and begin their journey with a moment of calm.
Duration: 30–40 minutes
Admission: Day-use bath – Adults ¥1,200 (main building)
Shimagawa Dam｜Scenic Walks and Lake Views
A 15-minute walk from the onsen town leads to the serene Shimagawa Dam . Surrounded by nature, its emerald waters change color with the weather and seasons—misty mornings, autumn foliage, and snowy landscapes all offer unique beauty. Benches and walking paths along the lakeside make it perfect for a leisurely stroll or picnic. For photographers, it’s a hidden gem with plenty of Instagram-worthy moments.
Duration: 20–30 minutes
Admission: Free
Footbaths and Drinkable Springs｜Healing Experience
Shima Onsen features several public drinking fountains where visitors can sip the mineral-rich onsen waters, believed to aid digestion and overall wellness. Gently cup your hands to taste the mineral-rich spring—it’s a quiet ritual that connects you to the land. Free footbaths are also scattered along the riverside and near ryokan entrances, offering a soothing break during your walk. Feel the warmth seep up from your feet and enjoy a moment of total relaxation.
Duration: 30–40 minutes
Admission: Free (some may be for guests only)
Nearby Places to Visit from Shima Onsen
Hinatami Yakushido｜Historic Temple Near Shima Onsen
About a 15-minute walk from the edge of the onsen town, Hinatami Yakushido stands quietly beside the river. Built on the source of the “Yumumuso-no-Yu ” spring, this peaceful temple is embraced by trees and drifting steam. Inside, the Yakushi Nyorai (Medicine Buddha) is enshrined, long revered by those seeking healing. A short visit to offer prayers here brings a sense of spiritual and physical balance to your journey.
Nakanojo｜Art Walks and Biennale Host Town
Take the bus back to Nakanojo Station from Shima Onsen, and enjoy an easy walk around the town’s art-filled streets and quaint cafes. Nakanojo is a small town in Gunma Prefecture and the host of the international art festival “Nakanojo Biennale,” held every two years. Even off-season, local galleries and artist spaces remain active, offering creative insight and cultural charm. The smooth train access and contrasting energy to the quiet onsen town make it an enriching side trip.
Kusatsu Onsen｜Famous Yubatake and Yumomi Show
Kusatsu Onsen, one of Japan’s most famous hot spring resorts, makes the perfect next destination. It’s about 1 hour and 30 minutes away by bus and train from Shima Onsen. At its center lies the iconic Yubatake (hot water field) and traditional Yumomi performances. The streets are lined with stone paths, eateries, and shops. Known for its highly acidic waters, Kusatsu offers a more stimulating soak—a striking contrast to Shima’s gentle springs. Experiencing both styles in one trip is a truly luxurious journey.
Shima Onsen Travel Questions & Answers
Is Shima Onsen suitable for a day trip?
Yes, it can be enjoyed in a single day, but staying overnight allows for a more relaxed and fulfilling visit.
Is it safe and comfortable for solo travelers?
Many ryokan welcome solo guests, and some offer private baths for added privacy and comfort.
Can I visit if I have tattoos?
Some facilities do allow guests with tattoos. It’s best to check ahead to confirm policies.
Are there places to enjoy on a rainy day?
Yes, there are free footbaths, cozy cafes, and indoor hot spring baths where you can stay warm and relaxed.
Where can I take the best photos?
Popular photo spots include the red Keiun Bridge, riverside inns, and walking in yukata around town.
Shima Onsen Summary & What to Explore Next
Shima Onsen is a healing hot spring retreat filled with nature’s calm and traditional charm. The sound of flowing water and rising steam creates an atmosphere of peace—ideal for first-time onsen-goers and solo travelers alike.
This guide has covered everything from how to get there, travel tips, and Q&A to ensure a safe and comfortable visit. Shima Onsen’s clear access from Tokyo makes it an easy and worthwhile escape.
Next, consider extending your journey to Kusatsu Onsen—another top hot spring in Gunma, known for its Yubatake and Yumomi shows.
