Freshwater wetlands once covered a large portion of southwestern Sussex County. Trap Pond State Park retains a part of the swamp's original beauty and mystery, and features the northernmost natural stand of baldcypress trees in the United States. The pond was created in the late 1700s to power a sawmill during the harvest of large baldcypress from the area. The Federal Government later purchased the pond and surrounding farmland during the 1930s and the Civilian Conservation Corps began to develop the area for recreation. Trap Pond became one of Delaware's first state parks in 1951.

Visitors have many opportunities to explore the natural beauty of the wetland forest. Hiking trails surround the pond, providing opportunities to glimpse native animal species and many flowering plants. Birdwatching is a popular activity and the observant hiker may spot a Great Blue Heron, owl, hummingbird, warbler, Bald Eagle or the elusive Pileated Woodpecker.