San'yō is a region located in the western part of Honshu, the main island of Japan. It stretches along the northern coast of the Seto Inland Sea and includes several prefectures, such as Okayama, Hiroshima, and Yamaguchi. The area is known for its beautiful landscapes, historical sites, and rich cultural heritage. The term "San'yō" translates to "three mountains," referring to the three major mountain ranges that define the region. These mountains contribute to the area's diverse climate and ecology, making it a popular destination for outdoor activities like hiking and sightseeing. San'yō is also famous for its local cuisine and traditional crafts.