A Deep Gorge Surrounded by Untamed Nature
The Iya Valley stretches for approximately 10 kilometers, with cliffs and ravines ranging from several dozen meters to as much as 100 meters deep. Abundant rainfall nourishes the surrounding mountains, creating a lush landscape of dense forests and richly layered greenery. The steep terrain and remote atmosphere give the valley the feeling of a hidden world far removed from the bustle of modern life.
According to local legend, members of the defeated Taira clan fled into these mountains after losing the Genpei War in the late 12th century. Stories of these Heike fugitives have become part of the region’s cultural identity, and small settlements can still be found scattered along the mountainsides. The valley’s remarkable scenery has also earned it a place among the 88 Scenic Views of Tokushima, a selection of notable landscapes in the prefecture.
The Yoshino River and the Iya River
The Yoshino River, often called Shikoku Saburo, is one of Shikoku’s major rivers. Its powerful currents and occasional floods have shaped the lives of communities along its banks for centuries. The Iya River, which flows through a steep, mountainous landscape, presented its own challenges to local residents, who needed reliable ways to cross the deep ravines.
Traditional vine bridges known as kazurabashi were developed to help people cross these difficult landscapes. The Iya Kazurabashi in Nishi-Iyayama is designated an Important Tangible Folk Cultural Property of Japan. Farther east, in Higashi-Iya, the Oku-Iya Double Kazurabashi consists of two vine bridges standing side by side. Both offer a fascinating connection to the region’s history and traditional mountain life.
Local Food, Hot Springs, and Seasonal Scenery
The Iya region is famous for Iya soba, a traditional buckwheat noodle dish associated with the area’s remote mountain communities. Local konjac, a firm, jelly-like food made from the konjac plant, is another regional specialty. Visitors can also enjoy the area’s hot springs, which have helped establish Iya as a destination for travelers seeking relaxation amid dramatic natural scenery.
The valley changes considerably with the seasons. Autumn brings vivid foliage to the mountainsides, while winter can bring snowfall because of the region’s high elevation. Each season offers a different atmosphere, from fresh green forests in warmer months to quiet, snow-dusted mountain scenery in winter.
Highlights of the Iya Valley
Hi-no-ji Gorge
Located in Tano-uchi, Nishi-Iyayama Village, Hi-no-ji Gorge is one of the valley’s most distinctive viewpoints. Here, the Iya River winds through the mountains in a shape resembling the Japanese hiragana character ひ (hi), giving the gorge its name.
The viewpoint has been selected for the 100 Recommended Viewpoints of Nishi-Awa. From here, visitors can admire the winding river and the surrounding mountain slopes. Autumn is particularly beautiful, when red, orange, and golden foliage spreads across the valley.
Iya Kazurabashi Vine Bridge
Situated in Zentoku, Nishi-Iyayama Village, the Iya Kazurabashi is a suspension bridge traditionally made from natural vines. It once served as an important route connecting settlements separated by the rugged terrain. Today, it is preserved as an Important Tangible Folk Cultural Property and is one of the best-known attractions in the Iya region.
Crossing the bridge provides an exhilarating experience, with views of the river and forested gorge below. Nearby, Biwa Waterfall plunges approximately 25 meters, adding another scenic stop to a visit to the area.
Oku-Iya Double Kazurabashi
Deep in Higashi-Iya, in Sugo, the Oku-Iya Double Kazurabashi features two traditional vine suspension bridges positioned next to each other. Its remote setting and historic construction make it a memorable destination for travelers interested in traditional engineering and mountain culture.
Crossing the bridges offers a different perspective on the surrounding forest and rugged landscape. Compared with the more widely known Iya Kazurabashi, this secluded site provides another opportunity to experience the distinctive atmosphere of the Oku-Iya mountains.
The Peeing Boy Statue
One of the Iya Valley’s most unusual landmarks is the Peeing Boy Statue, perched on a rocky outcrop above a precipice approximately 200 meters above the valley floor. Created in 1968 by Tokushima-born sculptor Yoshiyuki Kawasaki, the statue has become a familiar symbol of the area.
According to local accounts, the statue commemorates a former daredevil tradition in which people would urinate from the rock to prove their courage. Today, the figure provides a memorable photo opportunity, while the sheer drop beneath it emphasizes the dramatic scale of the surrounding gorge.
Mountains and Other Nearby Attractions
The wider Iya region is surrounded by impressive mountains, including Jirogyu and Mount Miune to the east. To the west lie Oboke and Koboke, two famous gorges carved by the Yoshino River. These landscapes form part of Tsurugi Quasi-National Park, an important protected area known for its mountain scenery, forests, and rich natural environment.
Visitors interested in the region’s history and traditional culture can also explore the Heike Yashiki Folk Museum, while hikers may wish to discover the area’s rugged peaks and secluded mountain settlements. The traditional mountain dwelling known as Chiiori is another notable cultural destination in the wider region.
How to Get to Iya Valley
Access to the Valley
The main railway access point for the Iya region is provided by JR Shikoku’s Dosan Line. By car, the nearest major expressway access is Ikawa-Ikeda Interchange on the Tokushima Expressway. The Iya Valley Road follows sections of the gorge, allowing travelers to explore the winding mountain landscape by road.
Getting to Iya Kazurabashi
From JR Awa-Ikeda Station or Oboke Station, take a Shikoku Kotsu bus toward Iya Kazurabashi. The journey takes approximately one hour. Get off at the Iya Kazurabashi bus stop, from which the bridge is only a short walk away.
Getting to Oku-Iya Double Kazurabashi
Reaching the Oku-Iya Double Kazurabashi requires more time and planning. From Awa-Ikeda Station or Oboke Station, take a Shikoku Kotsu bus to Kubo, a journey of approximately two hours. Transfer there to a Miyoshi City bus and continue for about another hour to the Nijukazurabashi bus stop.
Getting to the Iya Valley Viewpoints
From Awa-Ikeda Station, the Iya Valley can be reached by Shikoku Kotsu bus in approximately 40 minutes. Travelers coming from Iya Kazurabashi can continue by bus for around 30 minutes. Because bus services through this mountainous region may be limited, checking current timetables before departure is advisable, particularly when planning to visit several attractions in one day.
Experience the Wild Beauty of Shikoku
With its towering cliffs, winding river, traditional vine bridges, and secluded mountain villages, Iya Valley offers a distinctive side of Japan that feels far removed from its major cities. The combination of dramatic scenery, Heike clan legends, local cuisine, and hot springs makes it an appealing destination for travelers seeking both nature and cultural experiences.
Whether admiring the winding river from Hi-no-ji Gorge, crossing the historic Iya Kazurabashi, or exploring the more remote Oku-Iya mountains, visitors can discover landscapes shaped by nature and a way of life closely connected to the mountains. Allowing enough time to explore the area at a relaxed pace is the best way to appreciate the quiet beauty and enduring traditions of this remarkable valley.