Ride the tidal observation boat in the Shimanami Kurushima Kaikyo Yuran-sen and land on Oshima Island with the ruins of the Geiyo Fortress.

The Kurushima Kaikyo Straits are famous as one of Japan’s top three fastest rapids. In addition to the whirlpools and spring tides created by the rapid currents, the world's first triple-suspension bridge, the Kurushima Kaikyo Bridge, can also be seen.
You will experience a whitewater tidal cruise with plenty of attractions, such as the iconic shipyards of Imabari, Japan’s largest marine city, land on Oshima Island where the ruins of Geiyo Fortress, built at the time of the Russo-Japanese War, are still intact, and visit modern heritage sites scattered around the island.
Enjoy a historical walk with a view of the Kurushima Kaikyo Straits.

・Time required for the programme: 2.5 hours
・Time of year: All year round
・Minimum number of participants: From 2
・Maximum number of participants: 42 persons per vessel, max. 2 vessels
・Price:
　Junior high school students and above: 2,500 yen per person.
　Primary schools students: 900 yen per person.
　Guided tours on the island：5,000yen (incl. tax) - (1 guide per 2 to 30 persons)
　Oshima Guidance tapes：500yen (incl. tax) + 1,000 yen(incl. tax) guarantee fee.
　*Guarantee fee will be refunded if the tape is returned without loss, damage or injury.