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Keya No Oto Hike In Itoshima, Kyushu: The Hiker’sGuide

Keya No Oto Hike In Itoshima, Kyushu: The Hiker’sGuide

Keya no Oto is a beautiful coastal viewpoint of Itoshima, which has incredible views of the beach from the ominous ridgeline and a 64m cave below! The Keya no Oto hike is short but provides an incredible view from the top.


Keya No Oto is located in the coastal region of Itoshima. We were based at the time in Fukuoka and caught the Kuko Line to Itoshima and then there is either a bus or you can take an Uber/taxi to the coast. The Uber cost us $30 just so you know that in advance. 



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Once you get anywhere near the coast you can follow the coastal trail to the pin on the map below. Once you are right near it there is a small trail that leads up the ridge. You can hike all the way up onto the top of the ridge as there is a bit of a trail, which includes some basic bouldering/rock climbing. It isn’t a trail I would recommend unless you are athletic and adept at bouldering and climbing. I’ll detail more of that below.

There is also a ferry that takes you to see the front side of Keya No Oto, which is actually a huge cave and a popular tourist activity. I’ll add the ferry times for that tour below also. 



an aerial view of a resort with a swimming pool.
a dock with umbrellas and chairs next to a swimming pool.


Without too many expectations, we caught the train from Fukuoka and then a $30 Uber from Itoshima to the coastline. We really just had the Keya No Oto pin location that we were headed for and figured we would discover some spots along the way. 

We ended up getting dropped by the Uber about 1-kilometer away from Keya No Oto and headed off along the coast towards the Keya No Oto viewpoint. As falcons soared above us and some surprisingly big waves crashed to our left, we strolled along the beach to the trailhead. There was a beautiful spot called Keya campground we passed along the way. I imagine it bustling with weekenders during the summer but now in winter, it was sparse as we crossed paths with just a few others rugged up in jackets on a mini winter adventure.

What are my favorite pieces of hiking gear?

There are four pieces of gear that I simply never forget when I go on a hike. These are four items that I using right now and this list gets updated every year! Here are my hiking essentials.

  • Arcteryx BETA AR Rain Jacket: This is my go-to rain jacket. It’s super light, folds down into a tiny ball, and protects brilliantly in a storm. This one never leaves my backpack.
  • Salomon X Ultra 3 Mid GTX Hiking Boots: For the best ankle support, waterproofing, and durable exterior I’m a fan of tough but light hiking boots like these Salomons for my adventures.
  • Black Diamond Head Torch: I can’t tell you how many times, I’ve arrived back from a hike unexpectedly late. I always keep this lightweight but strong headtorch in my bag for the unexpected.
  • Darn Tough Socks: These are the most comfortable hiking socks I’ve ever worn and last for years. They also have a lifetime warranty and you just send them in with a hole and they replace it no questions asked.

The trailhead is marked by a number of signs but you really can’t go wrong. It’s an 800m trail that has only one possible route as you make your way up to the viewpoint. Through a thick forest, we made our way not knowing how far the trail would extend. We reached a small viewing platform made out of wood that was quite handy. It rose about 2 meters above the trees to give a great view down towards the beach. This is where most people were stopping but the trail did continue, albeit a little rugged.

We continued on to the next point of interest, which was the small shrine. From this point on the trail become a little dangerous and I’d advise you to turn around if you are afraid of heights or have no experience rock climbing or bouldering. There are steep drop-offs and on top of the ridge, it could be a deadly drop with some dangerous exposure up there. One slip and you’re done so make that decision at the shrine.

The trail was now very overgrown, so much so that we had trouble finding the ‘trail’ at all. We opted on the rocky trail, which seemed more sturdy than the grassy and dirt that seemed to fall off at awkward moments. Once we committed to the adventure it wasn’t too difficult but was a little more than we had bargained for.

Atop the ridge, it was a very narrow path. A 50m+ drop on either side meant we had to focus on our steps until we reached a safer, wider spot on top of the ridge. We took a moment to relax up here, taking in the view of the beach and down to the volcanic cone at the other end of the coastline.


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Below is the famous cave, which is a popular tourist spot. From the top of the ridge, you cannot see it but with a drone, everything is possible so we went for a bit of a sunset flight. The cave is one of Japan’s three largest Genbudo Caves. It is a national treasure and one of the most famous spots in Itoshima. The “Hexagonal Pillar Rock” inside the cave, is a rock which has been designated as a national natural monument. The cave itself is 90m long and 64m high. 

We made our way back along the ridge and safely down before catching the Uber back to Itoshima and then the train back to Fukuoka to complete our adventure. Our conclusion from the day was that Itoshima was a beautiful area worth another day or two of exploring for sure!


The ferry ride to the cave takes around 30 minutes and gives you a good look at the front cave, which is a national monument. You don’t need to book in advance apparently and can just get your ticket 10-15 minutes prior to departure.

Operating hours:
9:00 AM-5:00 PM

Ferry departing times:
9:30 AM, 10:15 AM, 11:00 AM, 11:45 AM, 12:30 PM, 1:30 PM, 2:15 PM, 3:00 PM, 3:45 PM, 4:30 PM


  • Best Luxury Place to Stay in Fukuoka: Hotel WBF Grande Hakata (Value): This is by far the most popular hotel and one of the most luxurious in Fukuoka.
  • Best Value Place to Stay in Kumamoto: Hotel The Gate Kumamoto (Value): Hotel The Gate is a well-situated accommodation in the heart of Kumamoto, just across the train station and within walking distance to shops and restaurants.
  • Best Luxury Place to Stay in Kumamoto: Kumamoto Hotel Castle (Luxury): Set near the infamous Kumamoto Castle, this luxury hotel features a wide range of carpeted rooms from standard rooms to suites fitted with plush amenities.

For a full list of the top-rated places to stay in Kyushu, you can check out my comprehensive guide: WHERE TO STAY IN KYUSHU: BEST REGIONS & HOTELS


I spent over three weeks exploring Kyushu and visited some incredible waterfalls, hiked some amazing trails, and visited a number of epic volcanoes. I created a number of guides to help travelers find the best spots in Kyushu. You can explore the articles by clicking on the links below.

Thursday 21st of September 2023

Thank you so much for this review. I'm not very keen on hiking itself, but it's nice to know that there's a safe popular route I can take. Pictures look great too!

antonio carlos nomada

Monday 9th of March 2020

You didn't get in the cave???? :'(