Hirauchi Kaichu Onsen
Unique tidal hot springs on Yakushima Island, where natural rock pools meet the ocean, accessible only at low tide.
Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Essential for access
Hirauchi Kaichu Onsen
Best Time
Essential for access
Highlights
Must-see attractions
Unique tidal hot springs on Yakushima Island, where natural rock pools meet the ocean, accessible only at low tide.
"The perfect onsen does exist, and it's in one of the coolest places I've ever been to. 
Check the Tide Schedule ⏰
Crucial for access! Visit during low tide to enjoy the hot springs.
Wash Before You Soak 🧼
Use the smaller pools to wash yourself before entering the main baths.
Highlights
Discover the most iconic attractions and experiences
Oceanfront Rock Pools
Directly on the coast
Soak in naturally heated rock pools with the ocean waves as your soundtrack. Pure bliss!
Sunrise Soak
The main onsen pools
Witness a breathtaking sunrise from the warm waters – an unforgettable start to the day.
Varied Water Temperatures
Different rock pools
Discover pools with varying temperatures, allowing you to find your perfect level of warmth.
Plans like a pro.
Thinks like you
Planning Your Visit
Timing is Everything: Low Tide Access
Embrace the Natural Experience
Best Times
Insider Tips
from TikTok, Instagram & Reddit
Check the Tide Schedule ⏰
Crucial for access! Visit during low tide to enjoy the hot springs.
Wash Before You Soak 🧼
Use the smaller pools to wash yourself before entering the main baths.
Mixed Bathing & No Swimwear 👙🚫
Embrace the communal, clothing-optional nature. Towels are common for modesty.
Slippery Surfaces! ⚠️
The bottom of the pools can be very slippery, so step carefully.
Tips
from all over the internet
Check the Tide Schedule ⏰
Crucial for access! Visit during low tide to enjoy the hot springs.
Wash Before You Soak 🧼
Use the smaller pools to wash yourself before entering the main baths.
Mixed Bathing & No Swimwear 👙🚫
Embrace the communal, clothing-optional nature. Towels are common for modesty.
Slippery Surfaces! ⚠️
The bottom of the pools can be very slippery, so step carefully.
Bring a Small Towel 🧖♀️
Useful for drying off or for a bit of modesty when sitting poolside.
What Travellers Say
Reviews Summary
Visitors rave about the unique experience of soaking in natural oceanfront hot springs, especially during sunrise. The varying water temperatures and stunning views are major highlights. However, some find the mixed-gender, clothing-optional aspect intimidating, and the slippery surfaces require caution.
"Beautiful rotenburo (outdoor onsen)! Views are great, the temperature of the different pools vary, so you should find one that's just right. Make sure you check the times for low tide and remember this one's a mixed bath and no swimsuits allowed. Women can wear a bathing towel (like a cloth dress), see photo. Honestly, it's a little intimidating being so exposed as the path to the onsen is elevated so people can see you from 50m away and there are a few occupied houses in very close proximity, but if you can get past that, it's great!"
Nick C
"Very cool place. Highly recommend. The low tide that day was around 2pm; we went around 4:30pm and it was still very good. Almost everyone was local. No one was wearing swim suits, but all the men and women were using towels to cover their bodies. I unfortunately didn’t bring a towel, so I went in fully naked… The people were respectful, but I was worried that I offended them… oh well.
Before you go in, grab a little basin and wash yourself with the water from the two smaller pools."
Jia Yu
"I didn’t end up going in as it was (a) too hot a day and (b) only men there when I went. But it looked like it would have been nice"
M S
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
Hirauchi Kaichu Onsen is located on Yakushima Island. It's most easily accessed by car or taxi from Miyanoura or Anbo ports. Public buses are available but may require a walk.
The onsen is signposted, but it's good to have a map or GPS. The path to the onsen is elevated, offering views from a distance.
Yakushima is accessible by ferry or plane from Kagoshima. The ferry journey takes about 2-4 hours, while flights are much shorter.
There is a small parking area near the onsen, but it can fill up during peak times.
The path to the onsen involves steps and uneven surfaces, which may be challenging for those with significant mobility issues.
🎫 🎫 Tickets & Entry
There is typically a small entrance fee for the onsen, usually paid on-site. It's advisable to have cash on hand.
The onsen is accessible only during low tide. Check the local tide charts for the exact times each day, as these vary.
Generally, there are no strict age limits, but children should be supervised by an adult.
No, this is a public, natural onsen and private bookings are not available. You share the pools with others.
If the tide is high, the onsen will be submerged. You'll need to wait for the next low tide period.
🎫 🏞️ Onsite Experience
Wash thoroughly before entering the pools. Swimwear is prohibited, and it's a mixed-gender bath. Respect others' privacy.
Basic changing areas are usually available, but they are often open and simple.
Bring a small towel, cash for the entrance fee, and perhaps a waterproof bag for your belongings.
Crowds can vary. Weekends and peak tourist seasons might be busier. Locals often visit, especially during low tide.
Photos are generally allowed, but be mindful of other bathers' privacy. Some visitors prefer to leave their phones secured.
🍽️ 🍽️ Food & Dining
Dining options are limited directly at the onsen. It's best to eat before or after your visit in nearby towns like Miyanoura or Anbo.
While not explicitly forbidden, it's generally discouraged to eat or drink directly in the onsen pools to maintain cleanliness.
Yakushima offers fresh seafood, local vegetables, and traditional Japanese cuisine. Try some local specialties!
📸 📸 Photography
Sunrise offers stunning light, and the hours around low tide provide the best views of the pools.
Be respectful of other bathers. Avoid taking intrusive photos. Some visitors opt to leave cameras secured.
Capture the unique blend of hot springs and the ocean, the dramatic coastline, and the serene atmosphere.
Drone usage may be restricted or discouraged due to privacy concerns and the natural environment. Check local regulations.
Consider a wide-angle lens for landscapes and a polarizing filter to reduce glare on the water.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
Consider visiting during less crowded times if possible. Bringing a towel for modesty can help children feel more at ease. Alternatively, exploring Yakushima's other natural attractions, like its waterfalls and accessible forest trails, might be more suitable for younger children who may not be ready for the onsen's specific etiquette.
🌿 Nature Enthusiasts & Hikers
Remember to check the tide times carefully to maximize your onsen experience. The natural setting of the onsen, with its ocean views and geothermal activity, is a testament to Yakushima's incredible natural beauty.
+1🧘♀️ Wellness Seekers
Consider visiting early in the morning for a serene sunrise soak, or during a less busy period to fully immerse yourself in the tranquil atmosphere. The natural, unadulterated setting enhances the wellness benefits of the hot springs.
Deep Dives
In-depth insights and expert knowledge
The Magic of Tidal Onsens
This phenomenon means that access is strictly limited to the hours around low tide. Visitors must consult tide charts to plan their visit, adding an element of adventure and careful planning to the experience. The temperature of the water can vary between the different rock pools, offering a range of warmth for bathers to choose from.
Beyond the natural phenomenon, the setting itself is breathtaking. Imagine soaking in warm, mineral-rich water while gazing out at the vast Pacific Ocean. It's a truly immersive experience that connects you with nature in a profound way.
Navigating the Onsen Etiquette
Swimwear is prohibited at Hirauchi Kaichu Onsen. This can be intimidating for some, but it's part of the traditional onsen experience. Many visitors, particularly women, opt to use a small towel to cover themselves when moving around or sitting on the edge of the pools. Men also often use a small towel. The key is to be respectful of others and to maintain a sense of modesty within the communal setting.
Be mindful of the slippery surfaces within the rock pools. The natural rock can become slick with mineral deposits and water, so it's essential to move slowly and carefully. Finally, while photography is often permitted, always be considerate of other bathers' privacy.
Yakushima: The Island of Ancient Forests
Beyond the onsen, Yakushima offers incredible hiking opportunities. Trails wind through dense forests, past towering trees like the Jomon Sugi, and to stunning waterfalls. The island's unique ecosystem supports a rich variety of flora and fauna, making it a paradise for nature lovers and hikers.
Getting to Yakushima involves a ferry or flight from Kagoshima. Once on the island, renting a car is highly recommended for exploring its diverse attractions, including the onsen, the ancient forests, and scenic viewpoints.
Social
from TikTok, Instagram & Reddit