Uzunomichi, or the Onaruto Bridge Promenade, is a unique sightseeing attraction in Naruto, Tokushima Prefecture, where visitors can observe the famous Naruto whirlpools from approximately 45 meters above the sea. Built beneath the roadway of the Onaruto Bridge, this elevated walkway offers an unforgettable combination of dramatic ocean scenery, impressive engineering, and one of Japan’s most fascinating natural phenomena.
The promenade extends approximately 450 meters toward an observation area at the far end of the bridge, allowing visitors to enjoy a remarkable walk above the Naruto Strait. At the observation area, glass windows provide panoramic views toward both the Pacific Ocean and the Seto Inland Sea.
One of the main attractions is the glass floor, through which visitors can look directly down at the swirling seawater below. Watching the powerful currents and whirlpools from a height of approximately 45 meters offers a thrilling perspective that cannot be experienced from the shore.
Located within Naruto Park in Naruto City, Uzunomichi is a purpose-built pedestrian walkway beneath the Onaruto Bridge, which spans the Naruto Strait. The attraction allows visitors to observe the natural whirlpools that form where powerful tidal currents meet in the narrow strait.
The combination of the bridge’s enormous structure, the open sea, and the constantly changing currents creates a distinctive sightseeing experience. From the walkway, visitors can appreciate both the impressive scale of the bridge and the dynamic marine landscape below.
The walkway is suspended approximately 45 meters above the water, giving visitors a bird’s-eye view of the strait. Glass viewing panels allow them to look down at the sea beneath their feet, creating the sensation of standing directly above the moving water.
The observation areas also provide sweeping views of the surrounding coastline and the Onaruto Bridge itself. Whether you are interested in architecture, ocean scenery, or photography, the promenade offers numerous opportunities to appreciate the landscape from an unusual vantage point.
The Naruto whirlpools are formed by the strong tidal currents flowing between the Seto Inland Sea and the Pacific Ocean. Differences between high and low tides create powerful movements of seawater through the narrow Naruto Strait, producing the swirling patterns for which the area is famous.
The whirlpools are particularly impressive when tidal currents are strong. Spring and autumn are often especially rewarding seasons for viewing large whirlpools, although their size and visibility depend on the tides and prevailing sea conditions.
For the best experience, check the tidal schedule before visiting and plan your arrival around the predicted peak viewing period. The whirlpools are a natural phenomenon, so their appearance varies throughout the day. Even when the whirlpools are less prominent, the views of the strait and the immense bridge make the walk worthwhile.
Uzunomichi is a convenient stop when exploring the Naruto area. Nearby attractions include Naruto Park, known for its spectacular views of the strait and bridge, and the Otsuka Museum of Art, which features life-size ceramic reproductions of famous artworks from around the world.
Visitors can also explore local restaurants, enjoy regional specialties, and discover hot spring facilities in the wider area. Combining the promenade with other nearby attractions makes it easy to spend a rewarding day experiencing the natural scenery and cultural highlights of eastern Tokushima.
Before setting out, check the latest operating information, as the promenade may close temporarily during adverse weather or rough sea conditions. Since the walkway is exposed to the elements, wearing comfortable shoes and dressing appropriately for the weather will help make your visit more enjoyable.
Allow enough time to walk to the observation area, admire the views, and watch the changing currents below. If seeing the whirlpools is your main priority, checking the tide information in advance is especially important.
The Onaruto Bridge Promenade, Uzunomichi, offers a memorable opportunity to experience the power of nature from high above the sea. Its glass viewing panels, panoramic ocean views, and elevated position beneath the bridge make it one of Naruto’s most distinctive sightseeing destinations.
Whether you are visiting Tokushima for its natural wonders, scenic coastal landscapes, or unique engineering achievements, a walk along Uzunomichi provides a thrilling perspective on the famous Naruto whirlpools and the magnificent strait that surrounds them.
Summer (March-September) 9:00-18:00 *entry by 17:30
GW and summer vacation period 8:00 - 19:00 *entry until 18:30
Winter (October-February) 9:00-17:00 *entry by 16:30
Second Monday of March, June, September, and December
Adults 510 yen
Junior high and high school students: 410 yen
Elementary school students 260 yen
25 min. by Tokushima Bus from Naruto Stn. bound for Naruto Koen *5 min. walk from Naruto Koen bus stop
Tokushima Station: 73 min. by Tokushima Bus bound for Naruto Koen *5 min. walk from Naruto Koen bus stop
5 min. by car from Naruto-kita IC