Zhaxi Island (; also Tashi Island) is a small island in the middle of Lake Basum Tso a green salt water lake approximately  east of Lhasa in the Tibet Autonomous Region of China.
Located in the heart of Lake Basum Tso, a green saltwater lake near Lhasa, Zhaxi Island (also known as Tashi Island) is a small island situated in the Tibet Autonomous Region of China.