The National Park System protects gorgeous and diverse ocean and coastal parks. They span from the icy waters of Alaska to the warm waters of the Pacific Islands to the freshwaters of the Great Lakes. These parks were established to preserve our country’s greatest collection of natural, historic, and cultural treasures.
We invite you take a dive into the deep and explore what makes our 88 ocean and coastal parks iconic, treasured, and sacred.
Ocean & Coastal Parks
Find your ocean & coastal parks.
Historical Sites
Explore maritime history.
Last updated: December 10, 2025