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Fishing in sanctuaries this summer?

Take our course with Leave No Trace to learn how to do it sustainably!
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Capitol Hill Ocean Week 2025 is a wrap!

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Support sanctuaries with these Florida Keys-inspired threads!

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Tell Congress to Fund our National Marine Sanctuaries

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Sign Your Name: Speak Up for Marine Sanctuary Staff

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Who we are

The Foundation is a leading voice for U.S. protected waters, working with communities to conserve and expand those special places for a healthy ocean, coasts, and Great Lakes. Working together, we safeguard species and the places they call home, and preserve America’s maritime history.

Read our 2022-2024 Strategic Plan

National marine sanctuaries — our wondrous protected waters — teeming with life and inspiring a proud community of stewards for our ocean, coasts, and Great Lakes.

The National Marine Sanctuary Foundation supports projects across the National Marine Sanctuary System, a network of nationally significant protected areas in our ocean, coasts, and Great Lakes. The National Marine Sanctuary System is comprised of 18 national marine sanctuaries and spans more than 629,000 square miles of American waters.

Explore Sanctuaries to Save Spectacular

Explore America’s national marine sanctuaries. Discover the wonders they hold, and uncover what makes each site unique here. Engage with us to protect our ocean, coasts, and Great Lakes.

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