Hyakuzawa Onsen
Experience authentic, direct-source hot spring water in a traditional setting, perfect for relaxation after exploring Aomori.
Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Fewer crowds, more relaxing
Hyakuzawa Onsen
Best Time
Fewer crowds, more relaxing
Highlights
Must-see attractions
Experience authentic, direct-source hot spring water in a traditional setting, perfect for relaxation after exploring Aomori.
"The quality of the spring water was outstanding, as it was once used for therapeutic bathing."
Bring Your Own Toiletries
Shampoo, conditioner, and body soap are not provided. Pack your own to ensure a complete bathing experience. :shampoo:
Water is Very Hot!
The onsen water is known to be extremely hot. Be cautious and take your time to acclimate. :fire:
Highlights
Discover the most iconic attractions and experiences
Direct Source Hot Spring Water
Main bathing area
Experience the pure, therapeutic waters flowing directly from the source, known for its quality and natural carbonation.
Traditional Indoor Baths
Indoor bathing facilities
Immerse yourself in the old-fashioned charm of the indoor baths, offering a glimpse into classic onsen culture.
Relaxing Open-Air Area
Outdoor relaxation space
Even without an open-air bath, enjoy the refreshing breeze and scenic views from the chairs in the outdoor relaxation area.
Plans like a pro.
Thinks like you
Planning Your Visit
Embrace the Hot Springs
Timing is Key for Comfort
Best Times
Insider Tips
from TikTok, Instagram & Reddit
Bring Your Own Toiletries
Shampoo, conditioner, and body soap are not provided. Pack your own to ensure a complete bathing experience. :shampoo:
Water is Very Hot!
The onsen water is known to be extremely hot. Be cautious and take your time to acclimate. :fire:
Unique Atmosphere
The facility has a distinctive, colorful atmosphere that some find unusual but memorable. :rainbow:
Therapeutic Spring Quality
Enjoy the high-quality spring water, once used for therapeutic bathing, right from the source. :droplet:
Tips
from all over the internet
Bring Your Own Toiletries
Shampoo, conditioner, and body soap are not provided. Pack your own to ensure a complete bathing experience. :shampoo:
Water is Very Hot!
The onsen water is known to be extremely hot. Be cautious and take your time to acclimate. :fire:
Unique Atmosphere
The facility has a distinctive, colorful atmosphere that some find unusual but memorable. :rainbow:
Therapeutic Spring Quality
Enjoy the high-quality spring water, once used for therapeutic bathing, right from the source. :droplet:
Collect Special Towels
Consider purchasing unique anniversary hot spring towels as a souvenir. :gift:
What Travellers Say
Reviews Summary
Hyakuzawa Onsen is praised for its authentic, direct-source hot spring water with therapeutic qualities. Visitors appreciate the traditional atmosphere and the outdoor relaxation area. However, the water is notably very hot, and the lack of provided amenities like soap and shampoo is a common point of note. +2
"When camping at Iwaki Mountain, I came here to bathe in the Onsen and relax in the evening. Good experience!"
Thomas R.
"Very old onsen with only a few indoor baths. The water is very hot. And no soap provided."
Phi Doan
"Bathing on August 11, 2025
After descending from Mt. Iwaki, I visited Happy Hyakuzawa Onsen for a day trip.
The unique atmosphere both inside and outside the facility made me feel a little uneasy, to be honest.
I'm not sure if "happy" is the right word, but the colorful atmosphere from the entrance made it feel a little unsettling.
However, once I entered the bathroom, I found it to be a traditional hot spring.
The shower head was fixed and difficult to position while sitting, making it difficult to use, but it was a new type of showerhead I'd never seen before and it was interesting.
Well, the entire bathroom has an old-fashioned feel, so the inconvenience was forgivable.
The water was hot, and the spring water poured in vigorously.
The clear, lukewarm water was a carbonated spring with plenty of bubbles, which was very pleasant.
Shampoo, conditioner, and body soap are not provided, so you'll need to bring your own.
The lukewarm bathtub is small and there is no open-air bath, which is a shame, so I'll give it three stars."
温泉トラベラー
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
Hyakuzawa Onsen is located in Hirosaki, Aomori. While specific public transport details are scarce, it's often visited as a day trip after activities like camping at Mt. Iwaki or exploring Hirosaki Park. Consider local buses or taxis from Hirosaki City. +1
Yes, driving is a convenient option. Parking is usually available, making it easier to reach from surrounding areas like Hirosaki City or Mt. Iwaki.
Many visitors combine a visit to Hyakuzawa Onsen with a trip to Hirosaki Park for its famous cherry blossoms or after hiking Mt. Iwaki. It serves as a perfect relaxation spot. +1
🎫 🎫 Tickets & Entry
Specific opening hours can vary, but it's generally accessible for day-use visitors. It's advisable to check for the most current information before your visit, especially if planning an evening soak.
Admission fees for day-use visitors are typically reasonable. While exact prices aren't always listed, expect an affordable fee for enjoying the hot springs.
Advance booking is generally not required for day-use visitors. You can typically pay upon arrival.
Information on special passes or discounts is not widely available. It's best to inquire directly at the onsen facility if you are looking for any potential savings.
🎫 ♨️ Onsite Experience
Hyakuzawa Onsen offers indoor bathing facilities with hot spring water directly from the source. There's also an outdoor relaxation area with chairs. However, amenities like soap, shampoo, and conditioner are not provided. +1
No, Hyakuzawa Onsen does not have an open-air bath. While there is an outdoor relaxation area, the bathing itself is conducted in indoor baths.
The spring water at Hyakuzawa Onsen is known to be very hot. Visitors should exercise caution and allow themselves to adjust to the temperature gradually.
There are typically three types of baths: a very hot bath, a normal temperature bath (which can still feel hot), and a shallow bath with lukewarm water. Some reviews mention a cold bath in the men's section but not in the women's. +1
As with most onsen facilities in Japan, it's generally expected to refrain from using phones in the actual bathing areas to respect privacy and tradition. Check for specific facility rules.
📸 📸 Photography
Photography is typically not allowed inside the bathing areas of onsen facilities to respect the privacy of other guests. You may be able to take photos of the exterior or the surrounding relaxation areas, but always check for posted signs or ask staff.
The exterior of the onsen facility and the outdoor relaxation area might offer some photo opportunities, especially if there's nice weather. The unique atmosphere of the entrance area has also been noted.
While direct bathing photos are restricted, you might capture the essence of the onsen by photographing your own onsen towel or the unique souvenirs available, like anniversary towels.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
🧘 Solo Travelers & Relaxation Seekers
🚶 Day-Trippers from Hirosaki
Deep Dives
In-depth insights and expert knowledge
The Unique Water of Hyakuzawa Onsen
Visitors should be prepared for the intense heat of the water. While this is a hallmark of many Japanese onsen, Hyakuzawa's source water can be particularly hot, requiring a gradual approach to bathing. The facility offers different temperature baths, including a very hot option, a normal temperature bath, and a cooler, shallower bath, catering to varying tolerances.
The spring water's quality has historical roots, having once been utilized for therapeutic bathing. This legacy contributes to its reputation as a beneficial soak for relaxation and well-being. The experience is about immersing oneself in nature's healing properties, a core aspect of the onsen culture.
Navigating the Hyakuzawa Onsen Experience
It's crucial to note that amenities are minimal. Unlike modern spa resorts, Hyakuzawa Onsen does not provide essentials like shampoo, conditioner, or body soap. Visitors are strongly advised to bring their own to ensure a complete and comfortable bathing session.
While there isn't a traditional open-air bath (rotenburo), the facility provides an outdoor relaxation area. Here, guests can unwind on chairs, enjoying the fresh air and any pleasant breezes, which can be a refreshing contrast after a hot soak.
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