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Welcome to John D. MacArthur Beach State Park

Situated between the Atlantic Ocean and the Lake Worth Lagoon, the Park is 438 acres of natural environments, including seven species of plants and twenty-two species of animals designated as endangered or threatened.

John D. MacArthur Beach State Park was established in 1989, the only state park in Palm Beach County. The purpose was and is still today, to protect a very rare and spectacularly beautiful piece of Florida’s southeast coast.  John D. MacArthur realized this after a university study in the 1970’s revealed the biological treasures in this area.