Lehua is a small, crescent-shaped island located about 20 miles (32 km) west of the Hawaiian Island of Kauai. Formed by the cone of the extinct Ni’ihau volcano, the island spans 279 acres (1.13 square km). Lehua is an uninhabited wildlife sanctuary, providing habitats for at least 17 seabird species and 25 native plants along its steep, rocky shores.