Lisianski Island (Hawaiian: Papa‘āpoho) is one of the Northwestern Hawaiian Islands, with a land area of 384.425 acres (155.571 ha) and a maximum elevation of 40 feet (12 m) above sea level. It is a low, flat sand and coral island about 905 nautical miles (1,676 km) northwest of Honolulu. Linked to Lisianski are the extensive Neva Shoals. Access to the island is limited by helicopter or by boat to a narrow sandy inlet on the southeastern side of the island.
The volcanic island is undergoing the slow process of erosion, and features a depression between two tall sand dunes, that is thought to once have been a lagoon like the one on Laysan, its nearest neighbor. For this reason, the island's selected Hawaiian name, Papa‘āpoho, means "island with a depression". Over three-quarters of the Bonin Petrels that nest in Hawaii nest here. Recent discovery of subfossils on the island indicate that Laysan Duck populations occurred on the island, possibly as a result of the former lagoon.
Neva Shoals is a shallow reef covering 979 square kilometers (378 sq mi),. more than half the size of Oahu, directly southeast of the island. Neva Shoals was named by Lisiansky, after his ship, Neva. The shoal is shallow and makes access to the island difficult.The reef has been described by divers as a "coral garden"  because of the great variety of coral. Twenty-four types of coral have been identified at the reefs surrounding Lisianski. Reef fish are abundant, including predators.