Yakushima is one of the subtropical islands of the Ōsumi archipelago, located off the southern coast of Kyushu and part of Kagoshima Prefecture. The island is covered in a vast cedar forest, home to some of Japan's oldest trees. Trees over 1,000 years old are affectionately called yakusugi, with the oldest possibly over 7,000 years old.
Kagoshima Prefecture encompasses the southernmost part of Kyushu and the northern half of the Nansei Shoto Islands, stretching from Kyushu to Taiwan. As of February 1, 2025, Kagoshima Prefecture had a population of 1,527,019. Kagoshima is the prefectural capital and largest city, along with other major cities such as Kirishima, Kanoya, and Satsumasendai.