Shuangyu Island, also known as Double Fish Island, is a man-made island under construction in Xiamen Bay, Southeast China. Its design, which depicts a pair of dolphins circling each other, calls for roughly 8.8 billion gallons (33.3 billion liters) of reclaimed land to create. The island is slightly more than one mile (1.68 km) in diameter with about 7 miles (11.4 km) of coastline. When finished, it will house a high-end ecological resort.