Yakushima

Yakushima is one of the Ōsumi Islands in Kagoshima Prefecture, Japan. The island, 504.88 km2 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. The majority of the island is within the borders of the Kirishima-Yaku National Park.Yakushima's electricity is more than 50% hydroelectric, and surplus power has been used to produce hydrogen gas in an experiment by Kagoshima University. The island has been a test site for Honda's hydrogen fuel cell vehicle research.