On day three, take a day trip to Naoshima Island, a renowned art island located in the Seto Inland Sea. Explore the island's numerous contemporary art museums and installations, including the famous Benesse House Museum and the Chichu Art Museum. Marvel at the unique blend of art and nature as you wander through the island's scenic landscapes. Don't forget to visit the iconic yellow pumpkin sculpture by Yayoi Kusama, which has become a symbol of Naoshima. Enjoy a relaxing evening on the island, taking in the beautiful sunset views.