Yakushima (屋久島) is one of the Ōsumi Islands in Kagoshima Prefecture, Japan. The island, 504.88 km² (194.94 sq mi) in area, has a population of 13,178. Access to the island is by hydrofoil ferry, slow car ferry, or by air to Yakushima Airport . Administratively, the whole island is the town of Yakushima. The town also serves neighbouring Kuchinoerabujima. 42% of the island is within the borders of the Yakushima National Park.