24 parks for Saltwater Swimming
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National Park
Acadia National Park
Maine
Acadia National Park protects the natural beauty of the highest rocky headlands along the Atlantic coastline of the United States, an abundance of habitats, and a ri…
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National Historic Trail
Ala Kahakai National Historic Trail
Hawaii
Established in 2000 to preserve, protect and interpret traditional Native Hawaiian culture and natural resources, Ala Kahakai National Historic Trail is a 175-mile c…
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Park
American Memorial Park
Northern Mariana Islands
American Memorial Park honors the American and Marianas people who gave their lives during the Marianas Campaign of World War II. At the park, memorials stand in tri…
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National Seashore
Assateague Island National Seashore
Maryland, Virginia
Want to live on the edge? Visit a place recreated each day by ocean wind and waves. Life on Assateague Island has adapted to an existence on the move. Explore sandy…
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National Park
Biscayne National Park
Florida
Within sight of Miami, yet worlds away, Biscayne protects a rare combination of aquamarine waters, emerald islands, and fish-bejeweled coral reefs. Evidence of 10,00…
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National Monument
Buck Island Reef National Monument
U.S. Virgin Islands
Welcome to Buck Island Reef National Monument, called “the finest marine garden in the Caribbean Sea” by President John F. Kennedy. Snorkel the famous underwater tra…
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National Seashore
Canaveral National Seashore
Florida
Discover a dynamic barrier island shaped by dunes, coastal hammocks, and Mosquito Lagoon. Walk among ancient Timucua shell mounds and connect with thousands of years…
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National Seashore
Cape Cod National Seashore
Massachusetts
The great Outer Beach described by Thoreau in the 1800s is protected within the national seashore. Forty miles of pristine sandy beach, marshes, ponds, and uplands s…
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National Seashore
Cape Hatteras National Seashore
North Carolina
The sound of ocean waves, the starry night sky, or the calm of the salt marshes, you can experience it all. Shaped by the forces of water, wind, and storms these isl…
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National Seashore
Cape Lookout National Seashore
North Carolina
A boat ride three miles off-shore brings you to the barrier islands of Cape Lookout National Seashore. Horse watching, shelling, fishing, birding, camping, lighthous…
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National Park
Channel Islands National Park
California
Channel Islands National Park encompasses five remarkable islands and their ocean environment, preserving and protecting a wealth of natural and cultural resources.…
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National Seashore
Cumberland Island National Seashore
Georgia
St Marys is the gateway to Cumberland Island, Georgia's largest and southernmost barrier island. Here pristine maritime forests, undeveloped beaches and wide marshes…
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National Recreation Area
Gateway National Recreation Area
New Jersey, New York
Spanning 27,000 acres from Sandy Hook in New Jersey to Breezy Point in New York City, the park is both the gateway from the ocean into New York Harbor, and the gatew…
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National Seashore
Gulf Islands National Seashore
Florida, Mississippi
Millions of visitors are drawn to the Gulf of America for Gulf Islands National Seashore's emerald coast waters, magnificent white beaches, fertile marshes and histo…
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National Park Service site
National Park of American Samoa
American Samoa
The National Park of American Samoa invites you to discover the vibrant culture and stunning landscapes of the South Pacific. Experience a world unlike any other, wh…
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National Park Service site
National Parks of New York Harbor
New York
These 12 sites preserve more than 400 years of American history! We invite you to explore the past and investigate its relevance in our lives today. From the birth o…
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National Park
Olympic National Park
Washington
With its incredible range of precipitation and elevation, diversity is the hallmark of Olympic National Park. Encompassing nearly a million acres, the park protects…
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National Seashore
Padre Island National Seashore
Texas
Protecting sixty-six miles of wild coastline along the Gulf of America, the narrow barrier island is home to one of the last intact coastal prairie habitats in the U…
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National and State Parks
Redwood National and State Parks
California
Renowned for the world’s tallest trees, Redwood’s landscapes span from open prairies and oak woodlands to pristine rivers and untamed coastline. This ancient home ha…
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National Historical Park and Ecological Preserve
Salt River Bay National Historical Park and Ecological Preserve
U.S. Virgin Islands
Salt River Bay National Historical Park and Ecological Preserve uniquely documents the human and natural Caribbean world from the earliest indigenous settlements in…
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National Historical Park
San Juan Island National Historical Park
Washington
San Juan Island is well known for its splendid vistas, saltwater shores, quiet woodlands, orca whales and one of the last remaining native prairies in the Puget Soun…
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Ecological & Historic Preserve
Timucuan Ecological & Historic Preserve
Florida
Visit one of the last unspoiled coastal wetlands on the Atlantic Coast. Discover 6,000 years of human history and experience the beauty of salt marshes, coastal dune…
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National Monument
Virgin Islands Coral Reef National Monument
U.S. Virgin Islands
Virgin Islands Coral Reef National Monument includes federal submerged lands within the 3-mile belt off the island of St. John. These waters support a diverse and co…
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National Park
Virgin Islands National Park
U.S. Virgin Islands
Go beyond Virgin Islands National Park's stunning white-sand beaches. Hike to historic plantation sites to learn about a challenging past when sugar and enslaved lab…
