[2025 Aki Attraction] Travel Guide for Ioki Cave (Updated Apr)

📍Iokido, Kochi Prefecture Iokido is located on the road just outside the city center, heading east along National Route 55 in Aki City. Stepping out of the concrete road, you will see a view that makes you feel as if you have traveled back in time to tens of thousands of years ago. This cave is a natural sea cave formed by wave erosion when the surrounding area was the sea, and is about 5m high, 4m wide, and 40m long. At the back of the cave is a valley, and water that is usually enough to soak your feet flows out. You can also see shell fossils on the walls of the cave. *We recommend wearing easy-to-move-in sneakers or hiking boots when walking around (long boots are useful during long periods of rain or the day after heavy rain). Sandals are not recommended in the summer as there is a possibility of encountering vipers. #0yentravelJanuary2025

The natural cave "Iogi Cave" next to Iogi Station has an excellent ecology and gurgling streams. It was almost dark on the day I visited, and I was the only one along the road. I walked to the narrowest part and turned back, which was a pity! Kochi Prefecture should attach great importance to this scenic spot. The cave is well preserved, there is no garbage at all, and there is a large free parking lot in addition to free admission! #2024TravelReview

🇯🇵 [Kochi Prefecture] Let's look for shell fossils! Ioki Cave! (^^) A sea cave about 5m high, 3m wide, and 40m long. Shell fossils can be seen in the cave where 3 million year old strata remain (^^) After passing through the cave, you will reach the bottom of a valley where a rock wall covered with moss stands on one side and about 40 kinds of native ferns grow thickly. It is rare for several kinds of ferns to coexist in one place, and in 1926, this fern colony was designated a national natural monument. In the sunlight filtering through the trees, you will be soothed by the sounds of nature, such as the babbling of a stream and the gentle breeze! (^^) [Location] 117 Ioki, Aki City, Kochi Prefecture #0 yen trip November

This natural sea cave was formed by wave erosion when the surrounding area was the sea. It is a cave consisting of a fern colony designated as a national natural monument and strata deposited about 3 million years ago. It reminds me of Antelope Canyon in the United States. The ferny valley beyond the cave reminds me of Princess Mononoke. There was little rain and little water at the time, but it still felt tough to walk in normal shoes. There are two parking lots facing the main road, but there is an information center on the parking lot across the road where you can rent boots for free. It is definitely more enjoyable to rent them, so be sure to stop by before you go. [Ioki Cave] 117 Ioki, Aki City, Kochi Prefecture 784-0045 #DomesticTravelLogLine #KochiTourism #KochiTrip