National Marine Sanctuaries System

The National Marine Sanctuaries System is a network of protected areas along the U.S. coastline and Great Lakes, designated to conserve, restore, and manage our nation's most outstanding marine environments. These sanctuaries safeguard diverse ecosystems, including coral reefs, shipwrecks, and endangered species, while supporting scientific research, recreation, and sustainable industry. Managed by the National Oceanic and Atmospheric Administration (NOAA), they balance environmental protection with public use, ensuring that future generations can enjoy and learn from these vital aquatic habitats.