Orchid Island (Yami language: Ponso no Tao or Pongso no Tao; Chinese: 蘭嶼; pinyin: Lán Yǔ; Pe̍h-ōe-jī: Lân-sū) is a 45 km² volcanic island off the southeastern coast of Taiwan Island and separated from the Batanes of the Philippines by the Bashi Channel of the Luzon Strait. It is governed as Lanyu Township of Taitung County.