Before the area became a park, the forces of nature constantly changed the narrow strip of barrier dunes between the Atlantic Ocean and Little Assawoman Bay, keeping the area wild and undeveloped. The area that is Fenwick Island State Park remained largely undisturbed as the towns of Bethany Beach and Fenwick Island were established. During World War II, this was part of Delaware's coastal defense system, and a concrete observation tower from that era still stands near the northern boundary of the park. The area was renamed Fenwick Island State Park in 1981.
Today, Fenwick Island State Park i