There is a really spectacular cycling road connection the islands of Honshu and Shikoku in Japan. It is possible to rent a bike in either Onomichi (Honshu) or Imabara (Shikoku) and leave it in the other town. The distance between these towns are 80 kilometer (it is 70 km if you can rent or leave the bike at the bridge outside Imabara). In my case I left the bike in Imabara city near the railway station. There are seven bridges and six islands to pass on this wonderful journey across the Japanese Inland Sea.