Fenwick Island State Park is a 344-acre (139 ha) Delaware state park between Ocean City, Maryland and South Bethany, Delaware in Sussex County, Delaware, US. Fenwick Island State Park is open for year-round recreation from 8:00 am until sunset. Originally part of Delaware Seashore State Park, it was established in 1966 and renamed in 1981. The park is located on Fenwick Island, a narrow strip of land between the Atlantic Ocean and Little Assawoman Bay. It is largely undeveloped in comparison to the beach communities that surround it.

Delaware Seashore State Park is located near Dewey Beach, in Delaware, United States. It is bounded on the east by the Atlantic Ocean and on the west by Rehoboth Bay and Indian River Bay. The park covers 2,825 acres (1,143 ha). It is a major attraction for millions of visitors who come to the Delaware Beaches for water-related activities. Delaware Seashore State Park was created in 1965.