The remainder of the park is only open from sunrise to sunset, and includes a bathhouse on the Atlantic Ocean, an area for surf-fishing, a disc golf course, and bicycle and walking paths.

Penn's decree established Cape Henlopen as one of the first public use parcels of land in the Thirteen Colonies.

Numerous bunkers, concrete observation towers and the pier built to accommodate the laying of mines on the harbor floor remain today.

[5] Cape Henlopen State Park is home to a vast array of wildlife, notably several species of shorebird.

There are two beaches that are open to swimming at the park with lifeguard patrols between the Memorial and Labor Day weekends.

[5] A modern bath house with showers, changing rooms and a snack bar is located at the northern beach.

[6] Cape Henlopen State Park has two facilities that are rented out for large group gatherings, a pavilion for picnics and the "Officer's Club" a remnant of the Fort Miles days.

A concessionaire operates the Cape Henlopen Fishing Center, a bait and tackle shop at the pier.

The pine covered dunes of Cape Henlopen State Park are open to camping in some areas with over 150 campsite available.