Delaware Breakwater

The National Harbor of Refuge and Delaware Breakwater Historic District encompasses a series of seacoast breakwaters behind Cape Henlopen, Delaware, built between 1828 and 1898 to establish a shipping haven on a coastline that lacked safe harbors. The Harbor of Refuge is at the mouth of the Delaware Bay estuary where it opens into the Atlantic Ocean, at Lewes. The district is almost entirely offshore, touching land only at the former United States Coast Guard station. It was added to the National Register of Historic Places in 1989.

The Delaware Breakwater East End Light is a lighthouse located on the inner Delaware Breakwater in the Delaware Bay, just off the coast of Cape Henlopen and the town of Lewes, Delaware.

The first USS Gallup (SP-694), ex-Annie E. Gallup, was a United States Navy minesweeper commissioned in 1917 and lost in 1918. Gallup was built as the commercial "menhaden fisherman"-type steam fishing trawler Annie E. Gallup at Fall River, Massachusetts, in 1878. In 1917, the U.S. Navy acquired Annie E. Gallup from the Delaware Fish and Oil Company of Lewes, Delaware, for use as a minesweeper during World War I. The Navy originally intended to commission her under her full original name, but on 28 July 1917 General Order No. 314 specified that all section patrol vessels bearing compound names would be referred to by last name only. Accordingly, she was commissioned at Philadelphia, Pennsylvania, on 15 August 1917 as USS Gallup (SP-694). Assigned to the 4th Naval District, Gallup carried out minesweeping duties into the early weeks of 1918. At 1200 hours on 20 February 1918 Gallup, by then under the command of Ensign C. P. Berlin, USNRF, was anchored in the Harbor of Refuge at Lewes when a moderate northwest gale caused her to drag her anchor. The following morning, despite the fact that her engines were working at full power, Gallup ran aground, stern first, on the point of Cape Henlopen, Delaware, swinging around broadside to the beach. In response to her distress signals, United States Coast Guard crews from nearby lifesaving stations brought her complement ashore without loss of life. However, Gallup broke in two forward of her engine room and was declared a total loss. Gallup was stricken from the Navy List on 20 May 1918.

The Harbor of Refuge Light (originally Harbor of Refuge West End Light, though its east end counterpart has been long since discontinued) is a lighthouse built on the ocean end of the outer Delaware Breakwater at the mouth of the Delaware Bay, just off Cape Henlopen. It was built to function with the Delaware Breakwater East End Light in order to mark the National Harbor of Refuge.

Fort Miles was a United States Army World War II installation located on Cape Henlopen near Lewes, Delaware. Although funds to build the fort were approved in 1934, it was 1938 before construction began on the fort. On 3 June 1941 it was named for Lieutenant General Nelson A. Miles.As the primary fort of the Harbor Defenses of the Delaware, it was built to defend Delaware Bay and the Delaware River and to protect domestic shipping from enemy fire between Cape May and Cape Henlopen, particularly from the German surface fleet. The fort also operated a controlled underwater minefield to prevent ships entering the Delaware River estuary. One of these mines was revealed following 2016 Hurricane Hermine by local Cape Henlopen state park staff. The sea mine and anchor were archaeologically conserved.By 1950 the Army's coast defense role had been transferred to the Navy and coastal artillery defenses were obsolete with the fort becoming surplus. The Army continued to use portions and in 1962 the Navy established Naval Facility (NAVFAC) Lewes, a Sound Surveillance System (SOSUS) shore terminal there to replace the one at Cape May across the bay in New Jersey that was damaged in a storm. The NAVFAC was in commission 1 May 1962 to 30 September 1981. The headquarters building now houses the Biden Environmental Conference Center. The fort is now Cape Henlopen State Park.

The Cape Henlopen Beacon was a lighthouse built to mark the point of the cape, supplementing Cape Henlopen Light just to the south. It was decommissioned in 1884 and demolished.

Cape Henlopen is the southern cape of the Delaware Bay along the Atlantic coast of the United States. It lies in the state of Delaware, near the town of Lewes, where the Delaware Bay meets the Atlantic Ocean. Off the coast on the bay side are two lighthouses, called the Harbor of Refuge Light and the Delaware Breakwater East End Light.

Cape Henlopen State Park is a Delaware state park on 5,193 acres (2,102 ha) 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.

Lightship Overfalls (LV-118) (later renumbered WAL-539) was the last lightvessel constructed for the United States Lighthouse Service before the Service became part of the United States Coast Guard. She is currently preserved in Lewes, Delaware as a museum ship.

Col. David Hall House is a historic home located at Lewes, Sussex County, Delaware. The main house dates to about 1780, and is a 2+1⁄2-story, three-bay, frame structure. A lower 2+1⁄2-story wing was added about 1805. The main house is sheathed in its original cypress shingles and the wing in cedar shakes. It was the home of Colonel David Hall (1752-1817), who served as Governor of Delaware.It was added to the National Register of Historic Places in 1976.

Zwaanendael or Swaanendael was a short-lived Dutch colonial settlement in Delaware. It was built in 1631. The name is archaic Dutch for "swan valley." The site of the settlement later became the town of Lewes, Delaware.

Lewes ( LOO-iss) is an incorporated city on the Delaware Bay in eastern Sussex County, Delaware, United States. According to the 2020 census, its population was 3,303. Along with neighboring Rehoboth Beach, Lewes is one of the principal cities of Delaware's rapidly growing Cape Region. The city lies within the Salisbury, Maryland–Delaware Metropolitan Statistical Area. Lewes proudly claims to be "The First Town in The First State."