Kurushima-Kaikyo Bridge & Kirosan Observatory
The world’s first triple suspension bridge carries the road and cycle path just over four kilometres from Imabari to Oshima, some 65 metres above a strait where the tide runs like a river. Cyclists climb to deck level on a gentle spiral ramp from the Sunrise Itoyama terminal. On the Oshima side, a steep side road (or a taxi) leads to Kirosan Observatory Park, a viewing deck by the architect Kengo Kuma that is buried in the hilltop — the classic panorama of the whole bridge, especially at sunset.
Practical: Always open. Bridge tolls for cyclists have been waived under a long-running campaign — check whether it is still in force. The climb to Kirosan is about 3 km at a stiff gradient. From Imabari Station to Sunrise Itoyama is about 6 km.

