Nakatsu Gorge, Kochi Prefecture

Nakatsu Gorge, Kochi Prefecture Complete Guide | Explaining the Spectacular Niyodo Blue, Access, and Highlights in Detail

Nakatsu Gorge, located in Niyodo Town, Kochi Prefecture, is a prefectural natural park where the crystal-clear stream called “Niyodo Blue” and the beautiful natural formations created by rain and countless years of geological activity are perfectly harmonized. Starting with the Uuryu Waterfall with a drop of 20 meters, followed by Momiji Waterfall, Ryugu Gorge, and an 8-meter stone pillar, a succession of diverse natural wonders extends along a walking trail maintained for approximately 2.3 kilometers.

This article conveys all the attractions of Nakatsu Gorge and provides detailed information useful for everyone, from first-time visitors to repeat visitors.

What is Nakatsu Gorge? Overview of the Prefectural Natural Park

Nakatsu Gorge is a gorge spreading across the upper reaches of the Nakatsu River, a tributary of the Niyodo River system, and is a scenic spot designated as a Kochi Prefectural Natural Park. The Nakatsu River, a tributary of the Niyodo River that flows east-west through Niyodo Town, together with rain falling on Mount Nakatsu Myojin, has created over tens of thousands of years what is known as a “magnificent water forest.”

Representative Spots of Niyodo Blue

Nakatsu Gorge is one of the representative tourist spots representing “Niyodo Blue.” The Niyodo River has repeatedly ranked first in water quality rankings among first-class rivers nationwide and is known as a “miraculous pristine stream,” and its tributary, the Nakatsu River, also boasts surprising transparency. The color of the water, which changes from blue to green depending on the light, continues to captivate visitors.

It has also been selected as one of the Shikoku Water Eighty-Eight Places, and as a renowned spot where visitors can fully enjoy both gorge beauty and clear streams, many tourists from both within and outside the prefecture visit.

Geographical Location of Nakatsu Gorge

Nakatsu Gorge is located in Nanokawa, Niyodo Town, Agawa District, Kochi Prefecture, at a site approximately 500 meters up the mountainside from National Route 33. It is easily accessible, approximately 1 hour 20 minutes by car from Kochi City and approximately 1 hour 40 minutes from Matsuyama City in Ehime Prefecture.

At the gorge entrance, there is a hot spring facility called “Nakatsu Gorge Yuno no Mori,” which is convenient for rest and accommodation after a walk. There is also an information dissemination base operated by the Niyodo Town Tourism Association in the surrounding area, which is useful for gathering tourism information.

Highlights of Nakatsu Gorge | Spectacular Points Along the Walking Trail

The greatest attraction of Nakatsu Gorge is the ability to experience the gorge beauty up close while walking along a maintained walking trail. The walking trail, winding through the gorge, is designed to give you the sensation of “being right in the middle of a spectacular view.”

Uuryu Waterfall

Uuryu Waterfall, which can be called the climax of Nakatsu Gorge, is a beautiful waterfall with a drop of approximately 20 meters. It takes about 20 minutes of walking along the trail from the gorge entrance to reach it. The waterfall basin is a deep blue-green color, and a mystical and beautiful landscape unfolds before your eyes.

The area around the waterfall is surrounded by cliffs, and water spray provides a refreshing feeling. Especially in summer, it is crowded with people seeking coolness, and becomes a healing spot where you can fully bathe in negative ions. Uuryu Waterfall is a must-see spot if you visit Nakatsu Gorge.

Momiji Waterfall

Momiji Waterfall, as its name suggests, displays particularly beautiful scenery during the autumn foliage season. Located along the walking trail, in mid-November when surrounding trees are colored, the contrast between leaves turning red and yellow and the clear stream is wonderful.

While the waterfall itself is not as large as Uuryu Waterfall, you can enjoy a graceful flow of water and a scenic landscape where the surrounding nature is harmonized. The new greenery of spring is also beautiful, and it displays a different appearance with each season.

Ryugu Gorge

Ryugu Gorge is characterized by deep pools and is a spot where you can observe the particularly intense Niyodo Blue. Despite transparency that allows you to see to the bottom of the gorge, it exhibits a mysterious blue color due to its depth.

The origin of the name “Ryugu” (Dragon Palace) is said to come from the fact that the overwhelming beauty reminds visitors of the legendary Dragon Palace. The water color changes gradually depending on how light hits it, making it also a popular best photography spot.

8-Meter Stone Pillar

Along the walking trail of Nakatsu Gorge stands a giant stone pillar approximately 8 meters high. This pillar is a natural formation created by water erosion over long periods, representing the geological significance of the gorge.

The area around the pillar is covered with moss, evoking the passage of time from ancient days. As an artwork created by nature, it is a renowned spot where many tourists pause and gaze in wonder.

Other Points of Interest

Along the walking trail, there are other sights such as cliffs, giant rocks, and deep pools, with diverse natural wonders in succession. It is no exaggeration to say that the entire walking trail is a point of interest, and by taking time to walk slowly, you can fully appreciate the beauty of natural formations.

Due to the high transparency of the water, you can clearly see the stones and fish at the bottom of the river, allowing you to experience the pleasantness unique to pristine streams up close.

How to Walk the Trail and Time Required

Nakatsu Gorge’s walking trail extends approximately 2.3 kilometers (some information indicates approximately 1.3 kilometers) and takes about 20 minutes from the gorge entrance to reach Uuryu Waterfall. A standard round trip takes approximately 40 minutes to 1 hour, but if you walk slowly while enjoying photography and scenery, you should plan for 1.5 to 2 hours.

Characteristics and Precautions of the Walking Trail

The walking trail is relatively well maintained, but since you are walking in a natural gorge, the following points require attention.

Clothing and Equipment

• Wear comfortable sneakers or trekking shoes
• Avoid sandals or shoes with heels
• Some sections are slippery, so be especially careful during rain or immediately after rainfall

Items to Bring

• Drinking water (especially in summer)
• Towel (you may get wet from water spray)
• Camera or smartphone (waterproof protection is recommended)
• Insect repellent spray (from spring to autumn)

Fitness and Safety

• Stairs and slopes require moderate fitness
• If accompanied by small children, hold their hands while walking
• If you are elderly or lack confidence in your physical fitness, consider turning back midway without forcing yourself
• Use caution and appropriate footwear

Best Way to Walk

Early morning hours are less crowded, allowing you to enjoy the gorge beauty quietly. Also, the time of day when the water color appears most beautiful due to light angles is reportedly between 10 a.m. and 2 p.m.

Since the trail is not one-way, you walk the same path on the way back. The scenery looks different from opposite directions, so you can enjoy the view from both directions.

Foliage Season and Four-Season Charm

Nakatsu Gorge displays a different appearance throughout the year, but the foliage season in particular is breathtaking.

Best Time for Foliage

The best time to see foliage at Nakatsu Gorge is typically mid-November. During this period, the mountains surrounding the gorge turn red, yellow, and orange, creating a breathtaking landscape with the contrast of the Niyodo Blue clear stream.

The area around Momiji Waterfall and the entire walking trail are colored with autumn leaves, with landscapes that are picturesque from any angle. The foliage season sees increased tourist traffic, so visiting on weekdays or early in the morning is recommended.

Spring’s Fresh Green

Late April through May, during the fresh green season, is also a charming time at Nakatsu Gorge. Young leaves in vibrant green harmonize with the blue-green clear stream, creating a landscape full of vitality. Temperatures are also mild and the season is ideal for walking.

Summer’s Coolness

In summer, Nakatsu Gorge is popular as a retreat for those seeking coolness. The temperature inside the gorge is lower than the surrounding areas, and water spray and negative ions provide pleasant coolness. The transparency of Niyodo Blue is also high, making this the season to enjoy the most beautiful water color.

Winter’s Silence

In winter, Nakatsu Gorge has few tourists, allowing you to fully enjoy nature in quiet. Although temperatures are low, the gorge beauty seen in clear air is exceptional. Snowfall is minimal in this region, but care is needed in case of cold waves.

Access and Parking Information

The most convenient access to Nakatsu Gorge is by private car, though public transportation options are available.

Access by Car

From Kochi City

• Approximately 1 hour along National Route 33 toward Matsuyama
• Follow signs for Nanokawa, Niyodo Town, and head approximately 500 meters up the mountain from National Route 33
• Travel time: approximately 1 hour 20 minutes

From Matsuyama City

• Approximately 1 hour 30 minutes along National Route 33 toward Kochi
• Follow signs for Nanokawa, Niyodo Town
• Travel time: approximately 1 hour 40 minutes

From Kochi Expressway

• Exit at Ino IC and go to National Route 33
• Travel time: approximately 50 minutes from Ino IC

Parking

Free parking is provided near the Nakatsu Gorge entrance. The parking lot of “Nakatsu Gorge Yuno no Mori” is also available. Early arrival is recommended during busy seasons such as foliage season, as parking spaces are limited and may become full during peak periods.

Access by Public Transportation

Public transportation access is limited, but the following methods are available.

JR and Bus Service

• Taxi service from “Sakawa Station” or “Ino Station” on the JR Dosan Line
• Kuroiwa Kanko Bus (confirmation required in advance)

Since the frequency of public transportation is limited, it is recommended to check the latest information in advance with Niyodo Town Tourism Association or similar sources.

Rental Car

Renting a car in Kochi City or Matsuyama City offers the most freedom of choice. It also makes it possible to combine your visit with other Niyodo Blue spots in the surrounding area.

Nearby Facilities and Recommended Spots

When visiting Nakatsu Gorge, you can also enjoy nearby facilities and tourist spots.

Nakatsu Gorge Yuno no Mori

A hot spring facility located at the gorge entrance, ideal for relaxing after your walk. Day-use bathing is available, and the facility includes accommodation and a restaurant. You can also enjoy cuisine prepared with local ingredients.

Facility Information

• Hot spring (day-use bathing available)
• Accommodation facilities
• Restaurant
• Gift shop

Niyodo Town Tourism Exchange Hall

An information hub where you can gather tourism information about Niyodo Town. It provides information on other Niyodo Blue spots besides Nakatsu Gorge, event information, and model courses.

Other Niyodo Blue Spots

There are other spots scattered throughout the Nakatsu Gorge area where you can enjoy Niyodo Blue.

Niko Gorge

• Approximately 30 minutes by car from Nakatsu Gorge
• Famous for its mystical blue waterfall basin

Ago Gorge

• Approximately 40 minutes by car from Nakatsu Gorge
• Multiple points of interest including Crystal Gorge and Flying Dragon Waterfall

Niyodo River Main Stream

• High-transparency clear stream where canoe experiences are possible

It is recommended to plan a day-long sightseeing course combining these spots.

Precautions When Visiting Nakatsu Gorge

Please note the following points to safely enjoy Nakatsu Gorge.

Weather and Water Level

• The walking trail becomes slippery during rain or after rainfall
• Heavy rain may close the trail due to flooding
• Avoid visiting during typhoon warnings
• Check weather forecasts in advance; if unstable weather is predicted, it is recommended to postpone your visit

Reconfirm Clothing and Equipment

• Always wear comfortable, sturdy shoes
• Even in summer, long sleeves and pants help prevent insect bites
• Do not forget a hat and sunscreen
• Carrying rain gear gives peace of mind

Nature Conservation

• Always take your trash with you
• Collecting plants and rocks is prohibited
• Be mindful not to pollute the clear stream
• Avoid venturing beyond the walking trail

Safety Management

• Avoid traveling alone; visit with others if possible
• Check mobile phone reception in advance (service may be unavailable in some areas)
• If you feel unwell, do not force yourself and have the courage to turn back

History and Geology of Nakatsu Gorge

The beautiful landscape of Nakatsu Gorge is the product of a long geological history.

History of Formation

Nakatsu Gorge was formed over tens of thousands of years as rain falling on Mount Nakatsu Myojin eroded the Nakatsu River. Natural objects created by rain and the river’s flow have produced diverse landforms including cliffs, waterfalls, deep pools, and giant rocks.

Particularly, the strange rocks such as stone pillars were formed by differential erosion (the difference in erosion rates between hard and soft rocks), and are geologically valuable.

Prefectural Natural Park Designation

Nakatsu Gorge Prefectural Natural Park was designated to protect its excellent natural scenery. With superior gorge and mountainous landscape, as a beautiful gorge representative of Shikoku and as a spot representing the clear stream of the Niyodo River system, both conservation and utilization are being pursued in balance.

Photography Tips and Best Spots

Nakatsu Gorge is also popular as a photography spot, where Instagram-worthy photos can be taken.

Best Timing for Photography

• Time of Day: Between 10 a.m. and 2 p.m. when light conditions are optimal
• Season: Foliage season (mid-November) or fresh green season (late April to May)
• Weather: Clear or slightly cloudy days show the most beautiful water color

Recommended Photography Spots

1. Uuryu Waterfall: Shots capturing the entire waterfall and close-ups of the basin
2. Ryugu Gorge: Composition emphasizing the deep blue of the gorge
3. Stone Pillar: Include people in the frame to convey the pillar’s size
4. Momiji Waterfall Vicinity: Especially beautiful during foliage season
5. Stream View from Trail: Composition showing transparent water and river rocks

Photography Tips

• Using a polarizing filter (PL filter) suppresses water surface reflections, allowing clearer underwater photography
• Long-exposure to render waterfall water smoothly is also recommended (tripod essential)
• Adjust white balance to accurately reproduce the Niyodo Blue color
• Including people conveys a sense of scale

Conclusion: Experience the Spectacular Niyodo Blue at Nakatsu Gorge

Nakatsu Gorge in Niyodo Town, Kochi Prefecture, is a scenic spot representative of Shikoku where the Niyodo Blue clear stream and beautiful natural formations created by rain are perfectly harmonized. In this prefectural natural park, while walking along a maintained trail, you can experience a succession of diverse natural wonders up close, including Uuryu Waterfall, Momiji Waterfall, Ryugu Gorge, and an 8-meter stone pillar.

The best foliage season is mid-November, when the landscape is particularly spectacular, but there is charm throughout the year: fresh green spring, cool summer, and quiet winter. Approximately 1 hour 20 minutes by car from Kochi City and about 1 hour 40 minutes from Matsuyama City, it is easily accessible, and with the hot spring facility “Yuno no Mori” nearby, you can enjoy it either as a day trip or overnight stay.

At Nakatsu Gorge, a magnificent water forest created by nature over tens of thousands of years, fully appreciate the mysterious beauty of Niyodo Blue and gorge scenery. A renowned spot that heals all who visit with its natural formations and stream transparency—a treasure of Kochi Prefecture.

Pre-Visit Checklist

• Prepare comfortable shoes for walking
• Confirm weather forecast
• Charge camera or smartphone
• Bring drinking water and towels
• Gather information on nearby tourist spots
• Confirm operating hours of “Nakatsu Gorge Yuno no Mori” (if using hot springs)

Nakatsu Gorge is a treasure of Kochi Prefecture that should be visited by all who love nature. Please actually visit and experience firsthand the beauty of Niyodo Blue that cannot be fully conveyed by photographs or words.