Answer
Japan's highest point is Mount Fuji with an elevation of 3,776 Meters above sea level.
Mount Fuji , located on the island of Honshū, is an active stratovolcano in Japan, with a summit elevation of 3,776.24 m. It is the tallest mountain in Japan, the second-highest volcano located on an island in Asia, and seventh-highest peak of an island on Earth.