The Kurushima Kaikyo Bridge is not just one bridge, but a magnificent series of three suspension bridges spanning approximately 4 kilometers across the Kurushima Strait, connecting Oshima Island to Shikoku. As the longest suspension bridge structure in the world, it's a monumental engineering achievement and a critical component of the Shimanami Kaido, a renowned cycling and driving route that links Honshu and Shikoku via a chain of islands.
Visitors consistently praise the bridge for its spectacular views of the Seto Inland Sea, dotted with countless islands. Many describe the experience, especially by bicycle, as "breathtaking" and "magnificent." Reviewers frequently highlight the well-designed cycling paths, which are separated from vehicle traffic for safety and offer an immersive experience. The sheer scale and modern design of the bridge are often noted, with some comparing its grandeur to other famous bridges worldwide. The ability to cycle across such a long and impressive structure is a major draw, providing unique photo opportunities and a sense of accomplishment.
For cyclists, it's advisable to allocate sufficient time, as the approach to the bridge involves a noticeable uphill climb, described by some as "steep" or "exhausting" but ultimately rewarding. Reviewers suggest starting early, especially if attempting a longer portion of the Shimanami Kaido, to avoid strong winds that can make cycling challenging. Bringing water and snacks is recommended, as facilities might be sparse on the bridge itself. While the views from a car are also beautiful, many note that fences can obstruct the ocean view, making cycling or viewing from an observation deck a superior experience. Consider stopping at the Kurushima Strait Service Area or the Kameirozan Observatory for the best panoramic views.
The bridge is easily accessible by car as part of the Shimanami Kaido expressway, which connects Onomichi (Hiroshima Prefecture) to Imabari (Ehime Prefecture). Drivers should be aware that tolls apply for vehicles. For cyclists, the route is clearly marked from both the Imabari side (starting near Sunrise Itoyama) and the Oshima side. Bicycle rental facilities are readily available in Imabari, making it a convenient starting point for those wishing to cycle a portion of the bridge. Public buses also traverse the bridge, offering an alternative for those who prefer not to drive or cycle, with routes connecting cities like Onomichi and Imabari.
A common complaint from drivers is the obstructed view due to fences along the car lanes. To mitigate this, consider stopping at designated observation points before or after crossing, or opt for cycling or a bus ride to fully appreciate the scenery. Some cyclists mention the challenge of strong winds, particularly when riding towards Imabari; checking weather forecasts before setting out can help in planning a more comfortable ride.