Held once every three years, the Setouchi Trienalle is a world-famous contemporary Art Festival held on the islands of the Seto Inland Sea. The event was launched in 2010 to revitalise the struggling communities who have fallen victim to the depopulation issues of Japan's rural areas. The islands have a unique laid back atmosphere and stunning scenery to go with the variety of art exhibitions and installations. When is Setouchi Triennale 2022? The 2022 Setouchi Triennale will last more than 100 days, divided into three parts. Spring runs from April 14th - May 18th, Summer from August 5th - September 4th and Fall from September 29th - November 6th. How much are tickets? Tickets for the event can be purchased for all three seasons at . Guests under 15 enter free, and there are discounts available for those between 15-18. There are some pieces with additional entry fees and the ticket does not cover entry to the Chichu Art Museum or the Teshima Art Museum. .