Complete Guide to Ikaho Hot Spring|Charm, Tourism, and Access Information for Gunma Prefecture’s Representative Hot Spring
What is Ikaho Hot Spring?
Ikaho Hot Spring (Ikaho Onsen) is located in Ikaho Town, Shibukawa City, Gunma Prefecture, and is one of Japan’s representative hot spring destinations. Positioned on the eastern base of Mount Haruna (Harunasan) at an elevation of approximately 700 meters, it is known as a hot spring town characterized by a view overlooking the Kanto Plain and a symbolic stone-step street with 365 steps.
Together with Kusatsu Hot Spring and Shima Hot Spring, it is one of Gunma Prefecture’s three major hot springs, attracting many tourists throughout the year. It has a history so old that it is mentioned in the Man’yoshu (Collection of Ten Thousand Leaves), and it developed under the patronage of the Sanada clan during the Warring States period.
History of Ikaho Hot Spring
The history of Ikaho Hot Spring dates back over 1,300 years. The place name “Ikaho” is mentioned in the Man’yoshu, showing that it was known as a hot spring destination since ancient times.
The foundation of the current hot spring town was established in 1576 (the fourth year of Tensh during the Warring States period). At that time, Sanada Masayuki, under the orders of Takeda Katsuyo, developed the hot spring town as a convalescence site for wounded soldiers. The stone-step street built at this time functioned as a pioneering system for distributing hot water to each inn, and has become a symbol of Ikaho Hot Spring that continues to this day.
During the Meiji period, it developed as a hot spring destination beloved by literary figures. Many literati and artists such as Tokutomi Roka’s “Hototogisu” (The Cuckoo) and Yumeji Takehisa visited Ikaho and made it the setting for their works.
Spring Quality and Efficacy of Ikaho Hot Spring
Ikaho Hot Spring has two types of hot springs: “Golden Water” and “Silver Water.”
Golden Water (Kogane no Yu)
The representative hot spring of Ikaho Hot Spring, it is a sulfate spring rich in iron. It is called “Golden Water” because it oxidizes and turns brownish when exposed to air.
Spring Quality:
- Sulfate spring
- Iron-containing, sodium, calcium-sulfate, bicarbonate, chloride hot spring
- Source water temperature: approximately 42 degrees Celsius
Efficacy:
- Neuralgia, muscle pain, joint pain
- Poor circulation, fatigue recovery
- Gynecological diseases (also known as the “Hot Spring of Children”)
- Cuts, burns
- Chronic digestive disorders, hemorrhoids
Golden Water is particularly effective at promoting blood circulation and has long been cherished as the “Hot Spring of Children.” As a hot spring that warms the body from its core, it is effective for improving poor circulation.
Silver Water (Shirogane no Yu)
A relatively new hot spring whose existence was confirmed after the Heisei era. Colorless and transparent, it has a different spring quality from Golden Water.
Spring Quality:
- Metasilicic acid simple hot spring
- Colorless and transparent
Efficacy:
- Recovery and convalescence after illness
- Fatigue recovery, health promotion
- Gentle on skin, beauty effects
Silver Water is stimulating-free and gentle on the skin, allowing even those with sensitive skin and small children to bathe safely.
The Symbol of Ikaho Hot Spring: The Stone-Step Street
The 365 Steps
The most distinctive feature of Ikaho Hot Spring is the 365-step stone-step street running through the center of the hot spring town. This stone-step street is named with the wish that it will be bustling every day of the 365 days of the year.
Along both sides of the stone steps are lined inns, souvenir shops, bun shops, shooting galleries, and game arcades, creating a nostalgic Showa-era hot spring atmosphere. You can enjoy eating while walking up the steps, and also enjoy retro games like shooting galleries.
Highlights of the Stone-Step Street
Ikaho Shrine
A shrine located at the top of the stone steps that enshrines the deity of hot springs and medicine. It is believed to provide blessings for matchmaking, children, and safe childbirth, and attracts many worshippers.
Kawakaji Bridge (Kajikabashi)
A vermilion-painted arched bridge near the entrance of the stone-step street. Known as a spot for autumn leaves viewing, it is lit up at night in autumn.
Komakuchi
A spot along the stone steps where you can observe the hot spring distribution device. You can see part of the hot spring distribution system that has continued since the Warring States period.
Tourist Attractions at Ikaho Hot Spring
Ikaho Green Farm
A tourist farm located about 5 minutes by car from Ikaho Hot Spring. You can enjoy interacting with sheep and goats, milking experience, and butter-making experience. From the vast grounds, you can see the majestic scenery of Mount Haruna, making it a popular spot for families.
Ikaho Ropeway
A ropeway connecting the hot spring town and Harejokyu Station. A 4-minute aerial walk lets you enjoy a grand panorama of the Kanto Plain. Around the Harejo Station there are observation decks and Kaminoyama Park, and on clear days you can see all the way to Mount Fuji.
Yumeji Takehisa Ikaho Memorial Museum
An art museum displaying works by Yumeji Takehisa, a painter representing Taisho Romanticism. At Ikaho, the place loved by Yumeji, you can appreciate his paintings and design works. At the adjoining cafe, you can enjoy afternoon tea while savoring the Taisho Romantic atmosphere.
Ikaho Toy and Doll Classic Car Museum
A private museum displaying retro toys from the Showa era, dolls, and classic cars. Rich exhibits that both adults and children can enjoy, such as nostalgic tin toys and dioramas recreating Showa-era streetscapes.
Mizusawa Kannon (Mizusawa Temple)
An ancient temple of the Tendai sect located about 10 minutes by car from Ikaho Hot Spring. Known as the 16th sacred site of the Bandō 33 Kannon Pilgrimage, the main hall and hexagonal hall are notable. Famous shops selling Mizusawa udon line the temple gate, allowing you to enjoy both pilgrimage and dining.
Lake Haruna and Mount Haruna
Located about 20 minutes by car from Ikaho Hot Spring, this is the crater lake of Mount Haruna. A lake with a circumference of approximately 4.8 km where you can enjoy boating and fishing. If you ride the Haruna Mountain ropeway to the summit of Haruna Fuji, a 360-degree panorama spreads before you.
Famous Cuisine at Ikaho Hot Spring
Yuno Hana Manjū (Hot Spring Flower Bun)
A famous sweet representing Ikaho Hot Spring. The brown skin represents the color of Golden Water, and it is filled with sweet bean paste inside. Multiple bun shops line the stone-step street, each competing with their own unique flavor. Eating warm freshly-made buns while walking is the Ikaho way of enjoying them.
Mizusawa Udon
A famous noodle with a history of over 400 years in the Mizusawa district near Ikaho Hot Spring. Characterized by transparent white noodles and strong chewiness, it is typically eaten as cold zaru udon. It can be enjoyed with two types of sauce: sesame and soy sauce.
Joshu Beef
A premium beef representing Gunma Prefecture. At Ikaho Hot Spring inns, you can enjoy Joshu beef sukiyaki and shabu-shabu. Characterized by tender meat with natural sweetness.
Local Sake
Gunma Prefecture is also known as a sake production region, and there are multiple sake breweries around Ikaho. Famous brands include “Mizubasho” and “Tanigawa-dake,” which you can enjoy with meals at hot spring inns.
Access to Ikaho Hot Spring
Access by Train
From Tokyo:
- From JR Ueno Station on the Takasaki Line to Takasaki Station (approximately 1 hour 50 minutes by express train)
- From Takasaki Station on the JR Joetsu Line to Shibukawa Station (approximately 25 minutes)
- From Shibukawa Station by Kanetsu Koku bus to Ikaho Hot Spring (approximately 25 minutes)
Or:
- From JR Ueno Station on the Takasaki Line to Shibukawa Station (approximately 2 hours 15 minutes)
- From Shibukawa Station by Kanetsu Koku bus to Ikaho Hot Spring (approximately 25 minutes)
From Shinjuku:
- From JR Shinjuku Station on the Shonan-Shinjuku Line to Takasaki Station (approximately 2 hours)
- From Takasaki Station on the JR Joetsu Line to Shibukawa Station (approximately 25 minutes)
- From Shibukawa Station by Kanetsu Koku bus to Ikaho Hot Spring (approximately 25 minutes)
Access by Car
From Tokyo:
- About 20 minutes from Shibukawa Ikaho IC on the Kanetsu Expressway (approximately 9 km)
- Travel time: approximately 2 hours 30 minutes from Tokyo
Parking:
There are multiple public parking lots at Ikaho Hot Spring. Since roads around the stone-step street are narrow, it is recommended to park at the entrance of the hot spring town and explore on foot. When staying overnight, each inn has dedicated parking.
Access by Highway Bus
From Tokyo:
- Highway buses to Ikaho Hot Spring operate from Shinjuku Station and Ikebukuro Station
- Travel time: approximately 2 hours 30 minutes to 3 hours
- Reservation required, fares approximately 2,000 to 3,000 yen one-way
Highway buses are recommended for those with luggage or who prefer to avoid transfers, as they travel directly to the hot spring town without changing.
Accommodations at Ikaho Hot Spring
Historic Inns
Ikaho Hot Spring has several historic inns founded over 100 years ago. You can experience historic architecture and traditional hospitality. Many inns offer Golden Water source hot spring baths, allowing you to enjoy authentic hot spring experiences.
Large Hotels
Large hotels built on elevated ground with good views offer observation baths overlooking the Kanto Plain and buffet-style dining. The facilities are well-equipped for families and group travels.
Affordable Accommodations
Around the stone-step street, there are reasonably priced minshuku (family-run inns) and pensions. You can casually enjoy hot springs in a homey atmosphere.
Day-Trip Hot Spring Facilities
Many inns and hotels accept day-trippers who don’t stay overnight. There is also a public day-trip hot spring facility called “Ishidan no Yu” at the top of the stone-step street, where you can enjoy Golden Water at reasonable prices.
Best Seasons at Ikaho Hot Spring
Spring (March to May)
During the cherry blossom season, you can enjoy flower viewing around the hot spring town. The fresh greenery of Mount Haruna is also beautiful, making it ideal for hiking. Golden Week is crowded, but you can experience the vibrant hot spring town.
Summer (June to August)
The high elevation means it remains relatively cool even in summer. You can enjoy boating and activities at Lake Haruna and Green Farm. The summer vacation period sees crowds of families.
Autumn (September to November)
The most beautiful season at Ikaho Hot Spring. Autumn leaves reach their peak, and the foliage around Kawakaji Bridge is particularly spectacular. Night illumination is held from late October to early November. The foliage of Mount Haruna is also wonderful, making it ideal for driving.
Winter (December to February)
A snowy hot spring town has its own charm and unique winter appeal. In the cold season, the warmth of the hot spring feels especially comforting. The air is crisp, making the views from observation decks particularly beautiful.
Recommended Sightseeing Courses Around Ikaho Hot Spring
Day Trip Course (Approximately 6 hours)
- 10:00 AM: Arrive at Ikaho Hot Spring, stroll the stone-step street
- 11:00 AM: Visit Ikaho Shrine, enjoy the view from observation deck
- Noon: Lunch with Mizusawa udon
- 1:00 PM: Visit Yumeji Takehisa Ikaho Memorial Museum
- 2:30 PM: Day-trip hot spring bath
- 4:00 PM: Purchase souvenirs at stone-step street, head back
One Night, Two Days Course
Day 1:
- Arrive in the afternoon, check in at inn
- Stroll the stone-step street, enjoy shooting galleries and eating while walking
- Dinner at inn, enjoy hot spring
Day 2:
- After breakfast, take Ikaho Ropeway to Harejo Station
- Interact with animals at Ikaho Green Farm
- Visit Lake Haruna and Mount Haruna
- Lunch with Mizusawa udon
- Head back
Two Nights, Three Days Course
In addition to the one night, two days course:
- Visit Ikaho Toy and Doll Classic Car Museum
- Visit Mizusawa Kannon
- Visit attractions in Shibukawa city (Shibukawa Skyland Park, etc.)
- Visit sake breweries in the area
You can thoroughly enjoy the hot springs and enrich your sightseeing.
Tips for Enjoying Ikaho Hot Spring
Precautions When Walking the Stone-Step Street
The stone-step street has 365 steps and requires considerable physical effort. It is recommended to wear comfortable shoes. Special care is needed on rainy or snowy days as the steps can be slippery. There are benches along the way for rest, so take your time and go at your own pace.
How to Bathe in Hot Springs
Golden Water is rich in iron and may stain towels brown. It is recommended to avoid white towels or use towels provided by the inn. As the hot spring composition is concentrated, avoid long soaks and be sure to drink water after bathing.
Money-Saving Information
Ikaho Hot Spring sells discount tickets such as the “Ikaho Hot Spring Sightseeing Pass” that allows discounted entry to multiple facilities. Checking information at tourist information centers or hotels allows you to enjoy tourism more economically.
Tips to Avoid Crowds
Golden Week, Obon, and autumn foliage season weekends are extremely crowded. If possible, visit on weekdays or stroll the stone-step street early morning or evening for a relatively relaxed experience.
Culture and Events at Ikaho Hot Spring
Ikaho Festival
Ikaho Hot Spring’s largest event held every September. Portable shrines are paraded through the stone-step street, and traditional arts performances and fireworks are held. The entire hot spring town is filled with festival excitement.
Ikaho Hawaiian Festival
A Hawaiian event held in summer. Hula dancing and Hawaiian music live performances are held at the stone-step street, allowing you to enjoy a tropical atmosphere.
Kawakaji Bridge Autumn Foliage Lighting
From late October to early November, the autumn foliage around Kawakaji Bridge is lit up. You can enjoy the foliage in a fantastical atmosphere different from daytime.
Summary: The Charm of Ikaho Hot Spring
Ikaho Hot Spring is Gunma Prefecture’s representative hot spring destination with a history of over 1,300 years. Its charm lies in the unique landscape of the 365-step stone-step street, two hot springs—Golden Water and Silver Water—abundant tourist attractions, and excellent accessibility from Tokyo (about 2 hours).
While retaining a nostalgic Showa-era hot spring atmosphere, it continues to evolve with modern facilities, making it enjoyable for people of all ages. Whether for a day trip or overnight stay, Ikaho Hot Spring can be enjoyed throughout the year and is an ideal destination for hot spring trips from the Kanto region.
The Golden Water known as the “Hot Spring of Children,” a history beloved by literati, and the great nature of Mount Haruna—Ikaho Hot Spring has everything to soothe both heart and body. On your next day off, please visit Ikaho Hot Spring and experience its charm firsthand.
