The UNESCO-listed Itsukushima Shrine dates back to the sixth century, when the island’s Mount Misen was worshipped as sacred. The present buildings were constructed in the 12th century, in a style used at the time for noble residences. It’s suspended above the water, and the various buildings—including a noh theater stage, a prayer hall, and the main hall—are connected by boardwalks over the water. The main shrine building is one of the largest shrines in Japan.
While it’s possible to visit the shrine and the island independently, many tours are available from Hiroshima, Kyoto, and Osaka. Tours that run from further afield are often two days, and include a visit to the Peace Memorial Park in Hiroshima. Tours for active travelers include kayaking around Itsukushima Island and hiking.