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National Marine Sanctuaries

The National Oceanic and Atmospheric Administration's (NOAA) Office of National Marine Sanctuaries serves as the trustee for a network of underwater parks encompassing more than 600,000 square miles of marine and Great Lakes waters. The network includes a system of 13 national marine sanctuaries and Papahānaumokuākea and Rose Atoll marine national monuments.

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Healthy Oceans Matter: Join NOAA in Celebrating National Ocean Month

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The ocean connects us all. From the air we breathe to the food we eat; our magnificent ocean touches every aspect of our daily lives. Each year, the National Oceanic and Atmospheric Administration (NOAA) celebrates our shared ocean throughout the month of June. The United States contains a diversity of ocean and coastal environments that are important parts of our national heritage and character...