Nii-jima (æ°å³¶) is a volcanic Japanese island administered by the Tokyo Metropolitan Government. It is one of the Izu Seven Islands, group of the seven northern islands of the Izu archipelago, and is located approximately 163 kilometres (101Â mi) south of TÅkyÅ and 36 kilometres (22Â mi) south of Shimoda Shizuoka Prefecture. The island is the larger inhabited component of the village of Niijima Village, Åshima Subprefecture of Tokyo Metropolis, which also contains the neighboring island of Shikine-jima and the smaller, uninhabited Jinai-tÅ. Nii-jima is also within the boundaries of the Fuji-Hakone-Izu National Park.
On the southern tip of Nii-jima, there was formerly a launch site for experimental and sounding rockets.