The Bow Zhangyue Observatory is located in the Bow Zhangyue city of Sashibao, Nagasaki Prefecture, Japan, and the observation deck can provide a panoramic view of Sashibao's nature and city streets. To the west is the remote islands of Wudao Beach and 99 Islands, to the south is the Sasebo Port deep into the bay, and to the east is the beautiful city streets, which can see the panoramic views of these three sides.