Hawaii’s Maro Coral Reef

A bluefin trevally swims in Hawaii’s Maro Coral Reef, part of the Papahānaumokuākea Marine National Monument.
(©James D. Watt/Ocean Stock)

This bluefin trevally is lucky to call Hawaii’s Maro Coral Reef, part of the Papahānaumokuākea Marine National Monument, its home. Maro is the largest reef in the Northwest Hawaiian Islands and just one of the many marine ecosystems protected in the 140,000 square miles of Papahānaumokuākea, one of the largest marine protected areas in the world. Learn more about Papahānaumokuākea and other marine heritage sites -- including stunning photos.