2種のお湯
1 / 10

Ikaho Open-Air Bath

4.2
·1k reviews·Shibukawa, Japan

A rustic, natural outdoor hot spring bath nestled in the woods, featuring unique 'gold' thermal waters.

Highlights

Highlights

Must-see attractions

Social content

Social

From TikTok & Reddit

Best Time

Weekday mornings

Fewer crowds, more peaceful

CrowdLow
Loading map...
2種のお湯

Ikaho Open-Air Bath

Best Time

Weekday mornings

Fewer crowds, more peaceful

CrowdLow
Highlights

Highlights

Must-see attractions

A rustic, natural outdoor hot spring bath nestled in the woods, featuring unique 'gold' thermal waters.

4.2
(1k reviews)

"Highly recommended for a very local experience!"

Vertical photo
TIP

Bring Your Own Towel! 🧖‍♀️

Towels are not provided, so bring one from your accommodation or purchase one at the counter.

Rinse First, Soak Later :droplet:

No soaps allowed before entering. Rinse your body thoroughly with the hot spring water first.

Third hero image

Quick Facts

Hours

Rating

4.2 · 1,186 reviews

Type

Spa

Highlights

Discover the most iconic attractions and experiences

The 'Gold' Thermal Waters

The 'Gold' Thermal Waters

Main pools

Experience the unique sulfurous 'gold' waters, known for their skin benefits, in both warm and very hot pools.

Forest Ambiance

Forest Ambiance

Surrounding area

Soak in the natural setting, shaded by trees and surrounded by moss-covered rocks for a peaceful escape.

Kajika Bridge Views

Kajika Bridge Views

Near Kajika Bridge

Enjoy views of the fall leaves from this simple rotenburo, a short walk from the iconic Kajika Bridge.

Your AI travel agent

Plans like a pro.
Thinks like you

Start Chatting

Planning Your Visit

Embrace the Local Vibe

This is a truly local experience with minimal amenities. Expect a rustic, natural setting. Bring your own towel and be prepared to rinse with the hot spring water before entering the pools, as soaps are not permitted.

Timing is Key for Tranquility

While the 'gold' thermal waters are a draw, the small size means it can get crowded. Visiting during off-peak hours or weekdays can offer a more serene soak amidst the natural beauty.

Best Times

When
Weekday mornings
Why
Fewer crowds, more peaceful
Crowd
Low
When
Late autumn
Why
Stunning fall foliage views
Crowd
Medium

Insider Tips

from TikTok, Instagram & Reddit

reddit.com

Mount Haruna - Sights in the area?

a few friends and myself (4 people total) are planning a 14 day max visit to Japan and my boyfriend wants to visit Mt Haruna for Initial D. we plan on renting a car for the day, but my question is, what are some other places that we could visit that are in the area? or if you…

Bring Your Own Towel! 🧖‍♀️

Towels are not provided, so bring one from your accommodation or purchase one at the counter. Reddit

Rinse First, Soak Later :droplet:

No soaps allowed before entering. Rinse your body thoroughly with the hot spring water first. Reddit

Cash is King 💰

The entrance fee is a modest 450 yen per adult. It's best to have cash on hand. Reddit

Rustic Changing Area 🌳

Be prepared for an outdoor changing area and lockers. It's part of the charm! Reddit

Tips

from all over the internet

Bring Your Own Towel! 🧖‍♀️

Towels are not provided, so bring one from your accommodation or purchase one at the counter. Reddit

Rinse First, Soak Later :droplet:

No soaps allowed before entering. Rinse your body thoroughly with the hot spring water first. Reddit

Cash is King 💰

The entrance fee is a modest 450 yen per adult. It's best to have cash on hand. Reddit

Rustic Changing Area 🌳

Be prepared for an outdoor changing area and lockers. It's part of the charm! Reddit

What Travellers Say

4.2
(1k reviews)

Reviews Summary

Visitors praise the Ikaho Open-Air Bath for its authentic, local experience and the unique benefits of its 'gold' thermal waters. The natural, rustic setting is a major draw, offering a peaceful soak surrounded by nature. However, the lack of amenities like showers and the 'rinse only' rule are points to be aware of.

"The bath smells daunting at first but when you are in it, it is fairly good.
One downside is there is no shower so you need to rinse yourself with the bath water before getting in."

Kittipon Tanadej

"Highly recommended for a very local experience!

This outdoor onsen might be small and very local but it’s worth the experience. Entrance is 450yen per adult and this gives you access to the pool and a locker.

Different from other onsens, this onsen doesn’t allow you to use soaps before entering, instead you just rinse your body with the onsen water. I highly suggest you bring your own towel or purchase one at the counter.

There is a lukewarm and a hotter pool, both featuring the local ‘gold’ thermal water. I have tattoos but no one seemed to say anything."

Michele Chang

"A simple outdoor onsen to view the fall leaves. It is a few minutes away by foot from Kajika Bridge. There are no hairdryers. Changing area and lockers are outdoors. It's 450 yen for adults and 200 yen for children."

Jessica Ing

What People Like

Authentic local experience
Unique 'gold' thermal waters
Peaceful natural setting

What People Dislike

No showers
Minimal amenities

Frequently Asked Questions

🚇 🗺️ Getting There

The Ikaho Open-Air Bath is located near Mount Haruna. If you're visiting Mount Haruna and renting a car for the day, it's a convenient stop in the area. Reddit It's also about a 15-minute walk from the main Ikaho Onsen area and Kajika Bridge. Reddit

Parking availability can vary, especially during peak seasons. If you're driving, look for designated parking areas in the vicinity. Reddit

While possible, it's a significant journey. Many visitors combine it with a trip to Mount Haruna or explore the wider Gunma Prefecture for a more relaxed experience. Reddit

🎫 🎫 Tickets & Entry

The entrance fee is very affordable, typically around 450 yen for adults and 200 yen for children. Reddit It's recommended to have cash on hand as payment methods might be limited. Reddit

Opening hours can vary, and it's advisable to check locally or online before your visit. Generally, it's open during daylight hours. Reddit

No advance booking is typically required for this local, open-air bath. You can usually pay the entrance fee upon arrival. Reddit

The main restriction is that soaps and shampoos are not allowed in the pools. You must rinse your body with the hot spring water before entering. Reddit While some onsen have tattoo policies, reviews suggest it's generally not an issue here. Reddit

🎫 🏞️ Onsite Experience

This is a very local and minimalist facility. You'll find the hot spring pools, a changing area, and lockers. There are no showers or hairdryers. Reddit

The bath features the local 'gold' thermal water, which has a distinct sulfur smell but is considered beneficial for the skin. There are usually two pools: one lukewarm and one very hot. Reddit

No, soaps and shampoos are not permitted. You are required to rinse your body with the hot spring water before entering the pools. Reddit

Yes, it's often recommended as a spot to view fall foliage, especially as it's located near Kajika Bridge, a popular autumn viewing spot. Reddit

Based on traveler experiences, there haven't been issues with tattoos at this particular bath, unlike some more formal onsen. Reddit

🍽️ 🍽️ Food & Dining

No, the open-air bath itself does not offer food services. You'll need to find dining options in the nearby Ikaho Onsen town. Reddit

Ikaho Onsen town offers a variety of local Japanese cuisine, including soba noodles, udon, and regional specialties. Reddit

📸 📸 Photography

Photography within the bathing areas is generally not permitted to respect the privacy of other bathers. However, you can capture the surrounding natural beauty and the exterior of the facility. Reddit

The surrounding forest and the nearby Kajika Bridge offer excellent photographic opportunities, especially during autumn. Reddit

You may also like

Ikaho Open-Air Bath (2026) – Best of TikTok, Instagram & Reddit Travel Guide