Japan. Itsukushima Shrine, on the island of Itsukushima in the city of Hatsukaichi, is a UNESCO World Heritage Site and one of the most famous Japanese sites outside Tokyo and Kyoto. Shōdoshima, nicknamed the "island of olives", and the Naruto whirlpools are two other well-known tourist sites. Neighboring locations like Kotohira and Okayama are often combined with the tour of the Setouchi region. Some historic sites, including Yashima in Takamatsu and Kurashiki, also attract many visitors. Hiroshima is the neighbor city to Itsukushima Shrine and another UNESCO World Heritage Site because of atomic bomb damage in 1945. Idol Unit STU48 operate on a cruise on the Setuchi. The eastern end of the Sea is now famous for the Setouchi Triennale set up in 2010 with the next event happening in 2022. Some of this takes place on the island of Naoshima, known colloquially as the art island, and the home of several permanent museums. At the far eastern extremity, as the Sea meets the Pacific Ocean, are the Naruto whirlpools that can be reached by sight-seeing boats. The Shiwaku Islands are a defined group numbering 28 that can be reached by ferry boat from Marugame. Here Richard Henry Brunton built one of his lighthouses that can still be seen, and the grave of Frank Toovey Lake, a young midshipman in his survey party has become famous. In the central area of Seto Inland Sea is Mount Ishizuchi on Shikoku. It is the highest mountain in western Japan and the highest mountain in Shikoku. In the western end of the Sea is Mimosusogawa Park (:ja:みもすそ川公園) in Shimonoseki. It commemorates the final stage of the Genpei war between the feudal Taira clan and Minamoto clan (1180–1185). Literature Some sites along the Seto Inland Sea were featured in eighth-century Japanese literature, both in prose and in verse, including Kojiki, Nihon Shoki, and Man'yōshū. Since some sites were used as places of exile, their feeling and landscape were evoked in waka. In fiction, in The Tale of Genji, Genji fled from Kyoto and resided in Suma (now a part of Kobe) and Akashi for two years. In medieval literature, because of the Genpei War, the Seto Inland Sea is one of the important backgrounds of The Tale of the Heike, particularly in its latter part. In the Western world, Donald Richie wrote a literary nonfiction travelogue called The Inland Sea relating a journey along