Kōyō is the Japanese term for the beautiful autumn foliage that occurs when leaves change color in the fall. This natural phenomenon typically features vibrant shades of red, orange, and yellow, primarily seen in deciduous trees. Kōyō is celebrated across Japan, attracting many visitors to parks and mountains to enjoy the stunning scenery. During the Kōyō season, people often participate in activities like momijigari, which means "maple viewing." Popular locations for experiencing Kōyō include Kyoto, Nara, and Hakone. The beauty of Kōyō is not only a visual delight but also a significant cultural aspect of Japanese life, symbolizing the changing seasons.