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National Marine Sanctuary Foundation

The National Marine Sanctuary System

Explore America's marine sanctuaries

From Stellwagen Bank off Massachusetts to American Samoa and the Great Lakes to the Florida Keys, these sites protect 629,000 square miles of public waters.

The Sanctuary System

Discover sanctuaries by location

Click any sanctuary on the map to learn more. Sites span the continental coasts, the Great Lakes, and the Pacific.

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Pacific sites
Full travel guide Overview available
21 sites across 5 regions