
Irimizu Limestone Cave
Explore the depths of Irimizu Limestone Cave, a thrilling subterranean adventure with icy rivers, tight squeezes, and bat colonies.

Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Fewer crowds, clearer water

Irimizu Limestone Cave
Best Time
Fewer crowds, clearer water

Highlights
Must-see attractions
Explore the depths of Irimizu Limestone Cave, a thrilling subterranean adventure with icy rivers, tight squeezes, and bat colonies.
"The B course was the coolest thing I've ever done, wading through icy water in total darkness!"

🎒 Pack a Full Change of Clothes
You WILL get wet and cold. Bring everything from underwear to shoes!
🔦 Headlamp is Your Best Friend
Essential for Course B & C to keep hands free for crawling.

Highlights
Discover the most iconic attractions and experiences

Subterranean River Adventure
Course B
Crawl through pitch-black passages with freezing water rushing past your knees. An exhilarating, raw caving experience.

Bat Colony Encounters
Throughout the cave
Witness numerous bats clinging to cave walls. A unique chance to see these creatures up close in their natural habitat.

Untouched Natural Formations
Throughout the cave
Marvel at ancient stalagmites and stalactites, shaped by millennia of water flow. Appreciate the raw, untouched beauty.
Plans like a pro.
Thinks like you
Planning Your Visit
Embrace the Chill: What to Wear
Course Selection & What to Bring
Best Times
Insider Tips
from TikTok, Instagram & Reddit
🎒 Pack a Full Change of Clothes
You WILL get wet and cold. Bring everything from underwear to shoes!
🔦 Headlamp is Your Best Friend
Essential for Course B & C to keep hands free for crawling.
🔒 Secure Your Valuables
Use lockers for phones and anything you don't want to get wet or lost.
🥾 Rent Waterproof Footwear
Regular shoes won't cut it. Rental sandals are available and recommended.
Tips
from all over the internet
🎒 Pack a Full Change of Clothes
You WILL get wet and cold. Bring everything from underwear to shoes!
🔦 Headlamp is Your Best Friend
Essential for Course B & C to keep hands free for crawling.
🔒 Secure Your Valuables
Use lockers for phones and anything you don't want to get wet or lost.
🥾 Rent Waterproof Footwear
Regular shoes won't cut it. Rental sandals are available and recommended.
🗺️ Choose Your Adventure Wisely
Course A is easy, B is adventurous, C requires a guide. Pick based on your comfort level.
What Travellers Say
Reviews Summary
Visitors rave about the unique and adventurous experience of Irimizu Limestone Cave, particularly Course B, which involves wading through frigid water and crawling through dark passages. The natural, untouched beauty and the close encounters with bats are frequently praised. However, some find Course A less exciting, and the cold water and need for extensive preparation are common considerations.
"Accidentally went to the other caves a 10 minute drive from here. The staff at the ticket booth was really nice and guided us to this limestone cave. It was 1,000 yen for B course and spent an hour in the caves. Cannot book ahead of time but we were able to go straight into the caves once we bought a ticket at the entrance. Really worth the money as it was such a unique experience. Most of the course was pitch black and needed a headlight. The water was quite frigid and at one point it went past the knees. Some places we had to squeeze through really small gaps as well as crouch through water. Highly recommend bringing a spare change of clothes as clothes most likely will get wet. There is a changing room and lockers to put in valuables for 100 yen. Do not recommend brining anything unnecessary into caves as highly likely will get wet or dropped. The whole experience was brilliant as it was evident how untouched the caves were by humans and it was interesting to be able to see how the water has hollowed out the caves."
Helen P
"There are 3 course A, B & C. A js the simplest route, you don’t need any shorts or torch.
B is the bit hard. You need to crawl in the water. Better to take shorts pants, rain sheeter & head lamp. You can experience a tremendous atmosphere.
For C course, you need to take guide along with you.
Water is bit cold, so better use water proof shoes."
Div
"A pretty cool cave system! There are 3 courses: A, B, and C. A is simple and easy -- good for kids and people who really don't want to get wet. B and C are not for the squeamish! You're going to get wet and you are going to get cold. If you are the adventurous type, you're going to have a blast wading through icy cold water and crawling along stones! Our guide was cool and very helpful.
Don't bring your smartphone into the cave if you take the B or C course. Actually, I wouldn't advise bringing anything in -- put it all in one of the rental lockers."
John Byrne
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
Irimizu Limestone Cave is located in Tamura City, Fukushima Prefecture. While specific public transport details are scarce, it's often accessed by car. Many visitors combine it with other attractions in the Fukushima area.
Information on direct public transport is limited. Renting a car or joining a tour that includes transportation is often the most convenient way to reach the cave.
Driving is the most recommended method. The journey typically takes around 1.5 to 2 hours from Fukushima City. Check local driving routes for the most up-to-date information.
Yes, parking is generally available for visitors. It's advisable to confirm parking availability with the attraction directly, especially during peak seasons.
While possible, it's a very long day trip. It's more feasible to stay overnight in Fukushima or a nearby area to fully enjoy the cave and surrounding attractions.
🎫 🎫 Tickets & Entry
Admission fees vary by course. The B course, which is highly recommended for an adventurous experience, costs around 1,000 yen. Prices are subject to change.
You cannot book tickets in advance. Tickets are purchased at the entrance on the day of your visit.
Opening hours can vary seasonally. It's best to check the official website or contact the attraction directly for the most current operating times.
Yes, there are three courses: A (simple, with walkways), B (adventurous, involves crawling in water), and C (requires a guide).
Information on specific discounts is not widely available. It's recommended to inquire directly with the cave's management for any group or child rates.
🎫 🧭 Onsite Experience
The B course is an immersive adventure. You'll crawl through narrow passages, wade through frigid water (sometimes past your knees), and experience pitch-black sections. A headlamp is crucial.
Course A is suitable for children as it has metal walkways and is well-lit. Courses B and C are more challenging and involve cold water, making them less ideal for very young children.
Yes, there are changing rooms and lockers available for visitors to store valuables and change into dry clothes. Lockers typically cost around 100 yen.
Depending on the course chosen, a visit can last from 30 minutes to over an hour. Course B, for example, can take about an hour.
Photography is generally allowed, but be extremely cautious with electronics, especially on courses B and C, as they are prone to getting wet. A waterproof camera or a phone in a waterproof case is advised.
🍽️ 🍽️ Food & Dining
There is a simple cafe located at the cave entrance where visitors can relax and grab a bite after their exploration.
The cafe typically offers light refreshments and snacks. It's a good spot for a quick drink or a small meal rather than a full dining experience.
Dining options directly surrounding the cave might be limited. It's advisable to plan for meals in nearby towns or cities like Tamura or Fukushima City.
While not explicitly prohibited, it's generally best to consume outside food and drinks before entering the cave, especially for courses B and C, to avoid getting them wet or creating litter.
It's recommended to eat before or after your visit, especially if you plan on doing the more physically demanding courses. The cafe offers a convenient option for a post-cave refreshment.
📸 📸 Photography
Use a headlamp for illumination in darker sections, especially on Course B. Be mindful of water and moisture; a waterproof camera or phone case is essential.
Generally, photography is permitted. However, avoid using flash in areas with bats to prevent disturbing them. Always prioritize safety and the preservation of the cave environment.
A compact, waterproof camera or a smartphone in a waterproof pouch is ideal. If using a DSLR, ensure it has adequate protection against moisture and consider a wide-angle lens for capturing the cave's scale.
Use a high ISO and a fast shutter speed to capture bats in flight without motion blur. Be patient and try to find them resting on the walls. Avoid direct flash.
The sections with dramatic stalactite and stalagmite formations, the underground river in Course B, and areas where bats are visible are particularly photogenic.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
If your children are a bit older and adventurous, consider Course B, but be prepared for them to get thoroughly wet and cold. Bringing a full change of clothes and waterproof footwear is non-negotiable. The presence of bats can also be a thrilling educational element for kids.
🎒 Budget Travelers
To maximize savings, pack your own snacks and drinks to enjoy before or after your visit, as the on-site cafe is for light refreshments. The biggest cost-saving tip is to bring your own waterproof gear and change of clothes from home, rather than relying on rentals or purchasing new items.
🧗♀️ Adventure Seekers
Consider Course C if you're looking for the ultimate challenge and are comfortable with a guided, more intense exploration. Bringing your own headlamp and waterproof gear will enhance your adventure and ensure you're well-prepared for the elements.
Deep Dives
In-depth insights and expert knowledge
Navigating the Courses: A Guide to Your Adventure
For the thrill-seekers, Course B is the true test. This immersive experience plunges you into the heart of the cave, requiring you to crawl through narrow passages and wade through icy cold water that can reach past your knees. Much of this course is in pitch darkness, making a headlamp absolutely essential for navigation and safety. This is where you'll feel the raw power of the underground river and experience the cave as it truly is.
Course C is the most challenging and requires a guided tour. This option offers the deepest exploration and is for those seeking the ultimate adventure. It often involves more complex maneuvers and a more intimate encounter with the cave's natural state. Regardless of the course, remember that the water is consistently frigid, and a change of clothes is highly recommended.
The Unique Ecosystem: Bats and Beyond
The cave's ecosystem is shaped by the constant flow of water, which has carved out the intricate passages and formations over millennia. The underground river is a powerful force, and its presence is felt throughout the cave, especially in the lower courses. This dynamic environment supports a unique subterranean life, making the cave a fascinating subject for nature enthusiasts. The untouched nature of the caves is frequently highlighted as a key aspect of their appeal.






Social
from TikTok, Instagram & Reddit