Guishan Island（Turtle Island）is an island in the Pacific Ocean currently administered under Toucheng Township, Yilan County, Taiwan.
Head Turning of the Turtle Mountain
It is interesting that from different views at different locations of Yilan County, the shape of Guishan Island is quite different. Also, the shape of the turtle's head is different; from Northeast Coastal Areas of Toucheng Township such as Shicheng and Dasi, the shape is close to the head of a turtle, while from Luodong and Wujie Townships, the shape is triangular. The reason for this is the curvy shape of the seashore of Yilan, circling the very island. There is hence the term "Head Turning of the Turtle Mountain" .
