The Twin Vine Bridges of Oku-Iya
Have you ever heard of bridges built to vanish in an instant—to protect the people who crossed them?
Hidden deep within the quiet valley of Oku-Iya in Tokushima Prefecture, at an altitude of 1000 meters, stand two modest vine bridges known as the Twin Kazura Bridges. This place holds the wisdom of ancient times and a quiet, enduring beauty.
A Bridge Designed to Be Cut Down
It is said that these bridges were first built about 800 years ago during the Genpei War. The defeated Heike clan fled into these remote mountains, seeking refuge. To survive in such an isolated environment, they needed a way to cut off access quickly if enemies approached.
They used a native plant called shirakuchikazura, known for its strength and flexibility, to construct the bridges. These bridges served as both vital pathways and defensive tools—easy to cut down in emergencies. The two bridges, named Otoko-bashi (Men’s Bridge) and Onna-bashi (Women’s Bridge), stand side by side, symbolizing connection and protection, and have become a cultural icon representing the hidden history of the Heike clan.
Otoko-bashi: 42 meters long, 12 meters high, 2 meters wide
Onna-bashi: 22 meters long, 4 meters high, 1.2 meters wide
Beneath the bridges flows the crystal-clear waters of the Iya River, surrounded by untouched nature.
When crossing the bridge, you will notice the vines covering the structure.
You might feel a brief moment of fear, wondering if it could snap, but in reality, sturdy steel cables run inside the vines. While the outer layer is wrapped in traditional natural plants, the inside is reinforced with modern materials, allowing you to cross safely.
Looking across the bridge, you will see that the gaps between the wooden planks are wider than you might expect, offering a clear view of the river far below. Though the gaps are safe for adult feet, peeking down may make your legs tremble slightly. Just standing on the bridge allows you to feel the depth of the valley and the raw power of nature all around you.
Today, the Twin Vine Bridges retain their traditional appearance while being built with a very sturdy structure. Thanks to regular maintenance, you can cross without any fear of the bridge snapping or collapsing. It is a place where you can walk across with peace of mind.
The Quiet Beauty of Nature
In this peaceful setting, the only sounds are the river’s gentle flow and birdsong. Unlike bustling tourist spots, here you are surrounded by serenity. The fresh greens of spring, vibrant autumn foliage, and seasonal mists offer unforgettable moments. It is a rare place where you can enjoy tranquility even on weekends.
Visiting Information
There is no public transportation to the bridges. The nearest train station is JR Awa-Ikeda Station, from where you must take a taxi or rent a car.
Please note: narrow mountain roads require careful driving, and the bridges are closed during winter (December to March).
Entrance Fee: 550 yen for adults, 350 yen for children
Opening Hours: 9:00–17:00 (April–June, September–November), 8:00–18:00 (July–August)
Closed: December–March
A Place to Quiet Your Mind
The Twin Kazura Bridges are not about flashy attractions. They offer a unique opportunity to experience nature’s quietude and ancient wisdom. If you are seeking a peaceful moment to reconnect with yourself, this is a destination worth visiting.
Editor’s Note
When we visited the valley, the only sounds were the wind and the flowing river. The feel of the wooden planks beneath our feet, the light reflecting in the valley, and the fresh mountain air—all stayed with us long after we left.
Standing on the bridge, we thought of the people who once crossed here to protect their lives. This bridge, once built for survival, now brings quiet moments to travelers and supports the local community through tourism. It was a gentle reminder of how times change, but the significance of a place remains.
Once a lifeline for those in hiding, now a symbol of connection for the region. Even as its purpose evolves, this bridge remains a cherished part of the community, quietly watching over the mountains and the people.
— written by Sumire
They look so peaceful and part of the environment. Don't let Indiana Jones anywhere near them!
that's a beautifull article about one of the most beautifull places i have been to in japan, Japan is dense but shikoku is wild still, the turquoise colored rivers flowing next to me while getting to the bridge on a bicycle, that's a memory inked in my head and still brings a smile on my face, even with distracted life of consumtion i am living in i still remember those memories, i was lucky to experience shikoku in the time of the spring and sakura blossoms flying everywhere,i slept under them in a forest of sakura that was said to be planted by a monk along his life time.
Japan is gorgeous and thier people wise and lovely, i wish i can go back one day