Cape Henlopen State Park is a Delaware state park on on Cape Henlopen in Sussex County, Delaware, in the United States. William Penn made the beaches of Cape Henlopen one of the first public lands established in what has become the United States in 1682 with the declaration that Cape Henlopen would be for "the usage of the citizens of Lewes and Sussex County." Cape Henlopen State Park has a 24-hour and year-round fishing pier as well as campgrounds. 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. The beach at Herring Point is a popular surfing spot. The park is a stop on Delaware's Coastal Heritage Greenway.
As with all Delaware state beaches, entrance is free during the off-season, but costs $4 for Delaware-tagged vehicles and $8 for out of state vehicles from 1 May to 31 October. Season passes may be purchased at a cost of $27 per in-state vehicle and $54 per out-of-state vehicle. These passes provide access to all state beaches and parks in Delaware.
The cape was an important strategic location for the U.S Navy and Army during the American Revolution, War of 1812, Civil War, and World War II. Cape Henlopen Lighthouse, the sixth lighthouse built on the Atlantic Coast, was constructed from 1767-1769. This lighthouse was in operation until 1924 when it was abandoned after it was extensively damaged in 1920 by a storm.
During World War II, the U.S. Army built Fort Miles at Cape Henlopen. Numerous bunkers, concrete observation towers and the pier built to accommodate the laying of mines on the harbor floor remain today. Within the park grounds are a handful of concrete towers from that era, as well as underground ammo bunkers which were to be used in conjunction with the towers against the eventuality of air attack. Off the coast on the bay side are two lighthouses: the Harbor of Refuge Light and the Delaware Breakwater East End Light.
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. The 18 hole disc golf course and basketball courts are open year round. Hunting is permitted during Delaware's designated hunting seasons in some parts of the park. Hunters are expected to follow the rules and regulations of the Delaware Division of Fish and Wildlife.
Cape Henlopen State Park is a popular fishing destination. Anglers may fish from the beach or from the fishing pier on Delaware Bay. A concessionaire operates the Cape Henlopen Fishing Center, a bait and tackle shop at the pier. It is open seven days a week May 15 - October 1. Visitors to the park may drive onto the beach for surf fishing after receiving a permit from the park authorities. Access over the dunes is open to pedestrians at all times.
The pine covered dunes of Cape Henlopen State Park are open to camping in some areas with over 150 campsite available. Most sites have running water. They are available from family camping March 1 - November 30. Reservations are required. A primitive campground is available for use by youth groups.
There are a variety of marked nature and hiking trails at the park, ranging from a beach to pine forests. Bicycles are another popular way to explore the park, and rentals are available during part of the year.