Welcome to Papahānaumokuākea Marine National Monument
PMNM begins more than 150 miles northwest of Kauaʻi and stretches for 1200 miles. It's composed of 10 island clusters, which contain atolls (low sandy islands formed on top of coral reefs) and some single-rock islands. From east to west, the clusters are Nihoa Island, Mokumanamana (Necker Island), French Frigate Shoals, Gardner Pinnacles, Maro Reef, Laysan Island, Lisianski Island, Pearl and Hermes Atoll, Midway Atoll and Kure Atoll.
PMNM's total land area is less than 6 sq miles. Human history on the islands began when the first Polynesian voyagers arrived in the Hawaiian archipelago (Papahānaumokuākea is the Hawaiian 'earth mother'). In modern times, the most famous place has been Midway Atoll; it's normally the only island open to visitors.