Goat Island, also known as Mokuʻauia, is a flat islet consisting of lithified dunes in Laie Bay on the northeast shore of Oahu, Hawaii. The islet is separated from Malaekahana State Recreation Area by a 720 feet (220 m) channel of limestone reef shelf 1 metre (3.3 ft) underwater. The islet is 13 acres (0.053 km2) in area with a maximum elevation of 15 feet (4.6 m). The islet is a Hawaii State Seabird Sanctuary.