Karurusu Onsen - Image 1
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Karurusu Onsen

4.2
·85 reviews·Noboribetsu, Japan

A hidden gem offering serene, radon-rich hot springs with a soft, mellow texture, perfect for a peaceful escape.

Highlights

Must-see attractions

Social content

Social

From TikTok & Reddit

Best Time

Before 4 PM

Public access ends

CrowdMedium
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Karurusu Onsen - Image 1

Karurusu Onsen

Best Time

Before 4 PM

Public access ends

CrowdMedium

Highlights

Must-see attractions

A hidden gem offering serene, radon-rich hot springs with a soft, mellow texture, perfect for a peaceful escape.

4.2
(85 reviews)

"This hidden hot spring, tucked away just outside Noboribetsu, left our bodies, minds, and stomachs completely satisfied. Reddit"

Vertical photo
TIP

🤫 Secret Onsen Vibe

Feels like a hidden gem compared to busy Noboribetsu. Enjoy the peace! :onsen: ✨

💰 Affordable Entry

Only 500 yen for public access. Great value for a quality onsen experience. 💴

Third hero image

Quick Facts

Rating

4.2 · 85 reviews

Type

Health

♿ Wheelchair accessible

Highlights

Discover the most iconic attractions and experiences

The Mellow Hot Springs

The Mellow Hot Springs

B1 Floor

Experience the soft, mellow texture of this clear, colorless hot spring water. Perfect for a peaceful soak.

Reddit
Riverside Open-Air Bath

Riverside Open-Air Bath

Outdoor Bath Area

Soak in the hot springs with the soothing sound of the river. A truly tranquil experience, especially if you enjoy the scent of nature.

Reddit
Renovated Tatami Rooms

Renovated Tatami Rooms

Guest Rooms

Despite a traditional exterior, rooms are surprisingly clean and modern, offering a comfortable stay.

Reddit
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Planning Your Visit

Embrace the Tranquility

Karurusu Onsen offers a serene escape, especially if you're seeking a quieter alternative to bustling Noboribetsu. Arrive before 4 PM for public access and be prepared for a truly local experience. The 500 yen entry fee is a small price for this hidden gem. Reddit

Pack Smart for Comfort

While shampoo, conditioner, and body soap are provided, remember to bring your own toiletries and lotions. Towels can be rented or purchased, but bringing your own is also an option. Lockers may not always be functional, so keep valuables secure. Reddit

Best Times

When
Before 4 PM
Why
Public access ends
Crowd
Medium
When
Weekday mornings
Why
Quieter, more relaxing
Crowd
Low

Insider Tips

from TikTok, Instagram & Reddit

🤫 Secret Onsen Vibe

Feels like a hidden gem compared to busy Noboribetsu. Enjoy the peace! Reddit :onsen: ✨

💰 Affordable Entry

Only 500 yen for public access. Great value for a quality onsen experience. Reddit 💴

🧴 Bring Your Own Toiletries

Shampoo & conditioner provided, but pack your lotions and skin care. Reddit :womanhealthworker:

💧 Water Temperature Check

Water is around 41-42°C, perfect for many, but can feel hotter. Reddit :droplet:

Tips

from all over the internet

🤫 Secret Onsen Vibe

Feels like a hidden gem compared to busy Noboribetsu. Enjoy the peace! Reddit :onsen: ✨

💰 Affordable Entry

Only 500 yen for public access. Great value for a quality onsen experience. Reddit 💴

🧴 Bring Your Own Toiletries

Shampoo & conditioner provided, but pack your lotions and skin care. Reddit :womanhealthworker:

💧 Water Temperature Check

Water is around 41-42°C, perfect for many, but can feel hotter. Reddit :droplet:

🦀 Optional Dinner Upgrade

Consider adding seafood like hairy crab for a delicious meal. Reddit 🦀

What Travellers Say

4.2
(85 reviews)

Reviews Summary

Karurusu Onsen is praised for its exceptionally soft and mellow hot spring water, offering a tranquil escape from busier resorts. Visitors appreciate the clean, renovated interiors and the peaceful riverside setting. However, some find the tatami smell strong, and noise from the river or exhaust fans can be disruptive at night. Reddit

"I was here during summer to Noboribetsu and stopped by before heading to lake Toya. It is open to public until 4pm. Make your payment of 500 yen at the entrance and head to B1 for onsen via the lift. As tourist, this place feels like a secret tranquil onsen."

Jet Chan

"If you like the smell of tatami, you will like this hotel. I don't like the smell of tatami, for me it smells strongly of straw and grass. You can't open the window at night, because of the loud noise of falling water in the river. The exhaust hood works noisily, you can't fall asleep with it. The onsen is good, the water is clean, there are pools inside with a comfortable temperature of 39-40, 41. Outside 41-42 the water is very hot, it feels hotter than 42. You need to take towels from the room, and all other accessories except shampoo, gel, conditioner. Lockers with keys do not work.
Dinner is different for everyone, you need to ask in advance whether you will have seafood, or you need to pay extra for it, since Booking gave us a dinner that did not quite suit us. The audibility in the rooms is strong, but here it depends on your luck with the neighbors. Overall, an interesting experience, but this was the first time I slept on a tatami, and I don't know if I want to again. The service is good, everything is clean. But I could smell grass and hay in the hallway and in the room."

Travel with me

"This famous hot spring has a truly mellow and soft texture, and while it's not flashy, you can definitely feel the quality of the spring water.

I stayed at a large hot spring resort in Noboribetsu, but the water felt a bit thin and the crowds were tiring, so I didn't enjoy the hot springs, and so I came here. It was the right decision.

There's nothing around, but I was able to enjoy the hot springs in peace and quiet, which was great. I was worried because I'd heard the water would be hot, but it wasn't at all; at 41-42 degrees, it was just the right temperature for me. The faint green tea scent was soothing. The open-air bath was especially great. The older staff seemed a bit unfriendly, but the younger ones were very nice. I'd definitely like to come again.

*Sakura Umayu shampoo, conditioner, and hair dryers were provided. Rental towels are available. Toiletries and other skin lotions are not available, so bring your own."

8ties Sunny

What People Like

Mellow, soft hot spring water
Tranquil riverside setting
Clean, renovated rooms

What People Dislike

Strong tatami smell
Noise from river/exhaust
Inconsistent locker function

Frequently Asked Questions

🚇 🗺️ Getting There

Karurusu Onsen is a short drive or bus ride from Noboribetsu, making it a convenient stop. Many visitors include it as part of a larger trip to Lake Toya. Reddit

While it's a bit secluded, public transport options are available, though less frequent than in larger onsen towns. Renting a car offers the most flexibility. Reddit

For a day trip, consider driving or taking a taxi from Noboribetsu. This allows you to maximize your time and easily reach the onsen before it closes at 4 PM. Reddit

Yes, parking is available for visitors, which is convenient if you are traveling by car. Reddit

Absolutely! Karurusu Onsen offers public access to its baths for a fee, making it a great option for a relaxing day visit. Reddit

🎫 🎫 Tickets & Entry

The public bath fee is a very reasonable 500 yen per person. This grants you access to the onsen facilities. Reddit

Public access to the onsen is available until 4 PM. It's best to plan your visit accordingly to enjoy the facilities. Reddit

For public day use, booking in advance is generally not required, but it's always a good idea to check their official website or contact them for the most up-to-date information. Reddit

Towels are available for rent or purchase at the onsen. You can also bring your own if you prefer. Reddit

The entrance fee includes access to the hot spring baths, and basic amenities like shampoo, conditioner, and body soap are provided. Reddit

🎫 🧖 Onsite Experience

The water is described as clear, colorless, and odorless, with a soft, mellow, and rustic feel. It's a free-flowing hot spring containing radon. Reddit

The indoor pools are around 39-40°C, while the outdoor baths are hotter, around 41-42°C. Some find it feels hotter than the stated temperature. Reddit

Policies on tattoos in Japanese onsen can vary. It's advisable to check with the facility directly or cover your tattoos discreetly if possible. Reddit

Lockers are available, but some reviews mention that the keys may not always work, so it's wise to be cautious with valuable items. Reddit

It's known for its tranquil and secret onsen feel, offering a peaceful escape from the crowds often found in larger hot spring resorts. Reddit

🍽️ 🍽️ Food & Dining

The hotel offers dinner options, which can vary. It's recommended to inquire in advance about meal plans, especially if you have dietary preferences or wish to add seafood like hairy crab. Reddit

Dinner is typically part of an overnight stay. For day visitors, dining options might be limited to snacks or nearby establishments. Reddit

Reviews suggest that optional additions like hairy crab are exceptionally delicious. The quality of the food, when booked in advance, is generally well-regarded. Reddit

It's best to contact the hotel directly to inquire about vegetarian or vegan meal options, as these may need to be specially arranged. Reddit

Being a more secluded onsen, dining options immediately surrounding Karurusu Onsen are limited. Noboribetsu offers a wider selection of restaurants. Reddit

📸 📸 Photography

Generally, photography is not permitted in the bathing areas of Japanese onsen to respect privacy. Check for specific signage or ask staff. Reddit

The exterior architecture and the scenic riverbank area offer picturesque opportunities. Capture the serene atmosphere of the surroundings. Reddit

Yes, you can take photos in your hotel room to document your stay, especially to showcase the renovated interiors. Reddit

As with most natural and private areas in Japan, drone usage is likely restricted. Always check local regulations before flying a drone. Reddit

A versatile camera with good low-light capabilities would be ideal for capturing the ambiance. A wide-angle lens can be useful for landscapes. Reddit

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