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Kusatsu Onsen – Yubatake, Hot Spring Hopping and Classic Mountain Getaway

Kusatsu Onsen – Yubatake, Hot Spring Hopping and Classic Mountain Getaway
Kusatsu Onsen in Gunma is one of Japan’s most famous hot spring resorts, known for its steaming Yubatake hot water field, powerful acidic waters and traditional yumomi performance. This guide explains the different baths and public onsen, suggested walking routes around Yubatake, day-trip vs overnight options, the best seasons to visit and how to access Kusatsu from Tokyo.

Highlights

Kusatsu Onsen Overview

Kusatsu Onsen is known as a renowned hot spring town, where you can enjoy the Yubatake area, a yumomi show, and a classic onsen-town experience with public baths and communal bathhouses.

How to Explore Yubatake

Yubatake is the center of town and a popular photo spot where you can see hot spring water up close. At night it’s lit up, and it’s fun to stroll nearby souvenir shops and eateries.

Yumomi Experience

At Netsu-no-Yu, you can experience Kusatsu’s famous yumomi. The yumomi show is performed to the song “Kusatsu yoidoko, ichido wa oide” (performance schedules vary by season and dates).

Unwind with Baths and a Park

Sainokawara Park is great for relaxing along the hot spring stream and footbaths, and the Sainokawara Open-Air Bath is also known for night illuminations and stargazing while soaking. Communal bathhouses include Shirahata-no-Yu (near Yubatake) and Chiyo-no-Yu, among others.

Nature Views Beyond Town

The emerald-green crater lake Yugama on Mount Kusatsu-Shirane is well known, but access can be restricted due to volcanic activity, so it’s best to check the latest information before visiting.

Access Essentials

Train & bus: Ueno Station → Limited Express “Kusatsu-Shima” to Naganohara-Kusatsuguchi Station → about 25 minutes by bus to Kusatsu Onsen Bus Terminal / Shinkansen: Karuizawa Station → direct bus about 85 minutes (varies by service and road conditions) / By car: about 80 minutes from Shibukawa-Ikaho IC.

Seasonal Appeal

Kusatsu Onsen can be enjoyed year-round, but winter is especially popular for the combination of snowy scenery and hot springs.

For the latest information, please refer to official announcements or check on site.

Unwind in Kusatsu Onsen: A Complete Guide from Yubatake to Scenic Open-Air Baths

What is Kusatsu Onsen, One of Japan’s Top Hot Spring Towns?

Kusatsu Onsen in Kusatsu Town, Agatsuma District, Gunma Prefecture, is a hot spring destination surrounded by rich nature and is counted among Japan’s Three Great Hot Springs.

As the famous “Kusatsu-bushi” folk song says, “Kusatsu is so good you should come at least once,” its hot spring culture has been loved by people for generations.

In this article, we’ll explain Kusatsu Onsen’s unique features, top things to see, and the activities and facilities travelers can enjoy.

Use this guide when planning a Kusatsu trip to relax both body and mind in the hot springs.


Why Visit Kusatsu Onsen?

Abundant Hot Spring Water and Strongly Acidic Springs

One of Kusatsu Onsen’s biggest features is its abundant water volume and high acidity.

Its natural flow is said to exceed 32,300 liters per minute, making it one of the highest-output hot spring areas in Japan.

The hot spring water is strongly acidic, and the Yubatake source is said to have a pH of 2.1.

Because of this, many people visit for the distinctive feel of the water and atmosphere unique to this hot spring town.

Yubatake: The Icon of Kusatsu Onsen

When you think of Kusatsu Onsen, the first place that comes to mind is Yubatake (Hot Water Field).

Located in the center of town, its steaming landscape is also popular as a photo spot.

At Yubatake, you can see a system where hot spring water is run through wooden channels (mokuhi) and cooled naturally by exposure to the outside air.

At night, the area is illuminated, creating a magical atmosphere where steam and light blend together.

Souvenir shops and restaurants line the area around Yubatake, so you can enjoy the charm of the hot spring town while strolling.


Top Things to Do in Kusatsu Onsen

1. Yubatake

At Yubatake, the symbol of Kusatsu Onsen, you can watch hot spring water flow out through wooden channels.

It’s truly a scene worthy of being called the symbol of Kusatsu Onsen.

  • Illumination: After sunset, Yubatake is lit up and wrapped in a romantic atmosphere.
  • Stroll: The stone-paved area around Yubatake is perfect for walking around the hot spring town.
  • Footbath: There is a free footbath right next to Yubatake, great for a quick stop during your walk.

2. Netsu-no-Yu and Yumomi Experience

Netsu-no-Yu (Netsunoyu) is where you can experience Kusatsu’s traditional yumomi.

Yumomi is a unique process of cooling very hot spring water without adding cold water by stirring it with long wooden boards (rokushaku-ita), and it’s a culture unique to Kusatsu Onsen.

Yumomi Show

  • The yumomi show is one of Kusatsu’s signature sightseeing experiences.
  • It’s fun just to watch the show performed to the yumomi song, and there are sessions where visitors can join the experience.

3. Sainokawara Park

Sainokawara Park (Sainokawara Kōen) is another highlight of Kusatsu Onsen.

Hot spring water wells up throughout the park, and you can feel the onsen atmosphere while strolling.

Sainokawara Open-Air Bath

  • At the back of the park is a large open-air bath where you can enjoy the hot springs while feeling close to nature.
  • On some days, the area is illuminated at night, offering an atmospheric bathing experience.
  • The fee is 800 yen for adults and 400 yen for children.

4. Mount Kusatsu-Shirane

A short trip from Kusatsu Onsen brings you to Mount Kusatsu-Shirane.

Near the summit, Yugama is known as an emerald-green crater lake.

Due to volcanic activity, access restrictions may be enforced, and you may not be able to visit Yugama.

It’s safer to check the current restrictions before your visit.


How to Enjoy Kusatsu Onsen

Visit the Local Public Baths

Kusatsu Onsen has many local public baths used by residents as well.

These baths let you enjoy hot spring water up close, which is part of their charm.

Recommended Public Baths

  • Shirahata-no-Yu: Near Yubatake, known for its milky-white water. The source is said to have been discovered by Minamoto no Yoritomo.
  • Chiyo-no-Yu: In a quiet location, a public bath often visited by locals.
  • Jizō-no-Yu: A public bath where you can enjoy the Jizō source.

Rules can differ by bathhouse, so follow the local guidance on site.

Refresh at a Footbath

There are several footbath spots in the hot spring town, making it easy to stop by while sightseeing.

Footbaths around Yubatake are especially convenient and perfect for a quick break.

Enjoy Kusatsu Food

In the Kusatsu Onsen area, you can enjoy dishes and local specialties made with regional ingredients.

Onsen manju (hot spring steamed buns) are a classic souvenir, and it’s fun to compare flavors from different shops.

There are also plenty of street foods unique to the hot spring town, such as soba and yakitori.


How to Get to Kusatsu Onsen

Train and Bus

  • From Tokyo (train): From JR Ueno Station, take the Limited Express Kusatsu/Shima to Naganohara-Kusatsuguchi Station (about 2 hours 30 minutes). From there, take the JR bus to Kusatsu Onsen Bus Terminal (about 25 minutes).
  • From Tokyo (highway bus): From Busta Shinjuku, take the JR Bus Kanto Jōshū Yumeguri-go to Kusatsu Onsen Bus Terminal (about 4 hours).
  • By Shinkansen: Get off at Karuizawa Station via the Hokuriku Shinkansen, then take a direct bus (about 1 hour 15 minutes).

By Car

  • Kan-Etsu Expressway: About 80 minutes from Shibukawa-Ikaho IC.
  • Parking: There are several paid parking lots around Yubatake, making it convenient to visit by car as well.

Helpful Tips for Travelers

Multilingual Support

In Kusatsu Onsen, some facilities provide pamphlets in English and Chinese, making it easier for international travelers.

Some facilities may also have staff who can provide guidance in multiple languages.

Free Wi-Fi

Near Yubatake and major sightseeing spots, there are places where free Wi-Fi is available.

It’s convenient for searching information during your trip and sharing photos.

Bathing Etiquette

Public baths are also part of local residents’ daily lives.

Follow basic onsen etiquette, such as rinsing before entering and not putting towels into the bath.

Because the water can be quite hot, it’s recommended to ease in gradually and let your body adjust.

Summary

Kusatsu Onsen is one of Japan’s leading travel destinations where you can enjoy hot spring culture and natural beauty.

With highlights such as Yubatake, Sainokawara Park, and the traditional yumomi experience, there is plenty to see and do year-round.

Enjoy a special moment in Kusatsu Onsen, where relaxation and discovery await.

Frequently Asked Questions

A. Kusatsu Onsen is one of Gunma’s best-known hot spring towns, and at the central Yubatake you can see steam and hot spring water flowing up close. There’s also evening lighting, so after you arrive, doing one loop around the Yubatake area helps you get oriented and avoid getting lost later. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.
A. If you travel by train plus bus, the local bus from JR Naganohara-Kusatsuguchi Station to Kusatsu Onsen Bus Terminal takes about 25 minutes as a guide. Seats aren’t always available, so keeping luggage minimal and lining up a bit early can make the ride easier. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.
A. The admission fee for Sainokawara Rotenburo is 800 yen for adults and 400 yen for children. Opening hours vary by season. Because outdoor baths feel different depending on the air temperature, bringing an extra towel and something to throw on afterward can help with the chill. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.
A. Goza-no-Yu costs 900 yen for adults and 450 yen for children. It’s close to Yubatake and can get busy around midday, so early morning or before dinner is often smoother. Floors can be slippery when wet, so watch your step inside. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.
A. The “Yumomi and Dance” show at Netsu-no-Yu costs 700 yen for adults and 350 yen for children. Performances run multiple times in the morning and afternoon, and start times may change by season. Seats can fill up before the show, so arriving about 10 minutes early is a safer plan. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.
A. Yubatake Tourist Parking costs 700 yen for the first 2 hours for standard cars (then additional charges apply). Many highlights around Yubatake are within walking distance, so for a short visit it’s efficient to park once and explore the hot spring town on foot. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.
A. Starting from Yubatake and walking from closer spots to farther ones helps you avoid backtracking. Example: stroll around Yubatake → Goza-no-Yu → Netsu-no-Yu → Sainokawara Park → open-air bath. A small towel is handy for drying hands or wiping sweat. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.
A. Policies vary by facility. Check posted rules before bathing, and if covering is allowed, using cover stickers can be a considerate option. Some people find the water quite hot, so instead of soaking up to your shoulders right away, try rinsing first and easing in with a half-bath. The town has many slopes, so non-slip shoes and lighter luggage make walking easier.

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