Holts Landing State Park

Indian River Bay is a body of water in Sussex County, Delaware. It is part of Delaware's inland bay system, along with Little Assawoman Bay and Rehoboth Bay. Fed by the Indian River at its western end, the bay is connected to the Atlantic Ocean to the east via the Indian River Inlet. A natural waterway that shifted up and down a two-mile (3.2 km) stretch of the coast until 1928, the inlet was kept in its current location by dredging between 1928 and 1937, and in 1938 was fixed in place by the construction of jetties. The Charles W. Cullen Bridge, commonly known as the Indian River Inlet Bridge, spans the inlet. Indian River Bay is unique among Delaware's inland bays in that it is a drowned river valley, whereas Delaware's other bays are estuaries built on sand bars.

Lingo Point, Delaware is a point of land at the mouth of Lingo Creek at the western limit of Indian River Bay, 7.5 miles northeast of Frankford in Sussex County, Delaware; a variant of the name is Lingos Point.

The Indian River is a river and estuary, approximately 15 mi (24 km) long, in Sussex County in southern Delaware in the United States. The river is named after a Native American reservation that was located on its upper reaches. The Indian River rises approximately 2 miles (3.2 km) southwest of Georgetown and flows east, past Millsboro, its head of navigation. It enters Indian River Bay, an inlet of the Atlantic Ocean south of Cape Henlopen. The lower 6 miles (9.7 km) of the river form a navigable tidal estuary stretching westward from Indian River Bay, which is protected from the open ocean by two sand bar peninsulas. East of the bay is its mouth, the Indian River Inlet. Until 1928, the Indian River Inlet was a natural waterway that shifted up and down a two-mile (3.2 km) stretch of the coast. Dredging kept the inlet open in its current location between 1928 and 1937, and in 1938 the United States Army Corps of Engineers built jetties that hold it in place. Roads cross the river in three places, at U.S. Route 113 (in Millsboro), Delaware Route 24/Delaware Route 30 (also in Millsboro), and Delaware Route 1 (at Indian River Inlet in the Delaware Seashore State Park). With the Indian River Inlet in a fixed place beginning in 1928, it became possible to build a bridge to span it, and the completion of the Ocean Highway (present-day Delaware Route 1 and now known as Coastal Highway) between Rehoboth Beach and Bethany Beach in 1933 prompted Delaware to build a span to connect the northern and southern segments of the highway. Since 1934, six bridges have spanned the inlet, all known informally as the Indian River Inlet Bridge, although all but the first officially were named the Charles W. Cullen Bridge. The current Indian River Inlet Bridge opened in 2012.

Poplar Thicket, also known as Marian R. Okie Memorial Wildlife Preserve at Poplar Thicket, is an archaeological site located in Long Neck, Delaware. Poplar Thicket is the name of a farm purchased by L.P. Faucett in 1918. It consists of forest, marshes, and wetlands spread across a quarter-mile of undisturbed Indian River Bayshore. Austin Okie, a grandson of Faucett, donated the property to The Nature Conservancy in October 2007, to serve as a bird refuge. The property was subsequently transferred to the state of Delaware, establishing it as the Marian R. Okie Memorial Wildlife Preserve at Poplar Thicket. The property is administered by the Delaware Department of Natural Resources and Environmental Control and serves as a bird sanctuary, used for conservation education and environmentally-sensitive activities such as bird-watching and walking.It was listed on the National Register of Historic Places in 1978.

Lingo Creek is a 1.7-mile-long (2.7 km) stream flowing southeast to Indian River Bay, 7.5 miles (12.1 km) northeast of Frankford in Sussex County, Delaware.

Long Neck is a census-designated place (CDP) in Sussex County, Delaware, United States. The population was 1,980 at the 2010 census. Long Neck was the only census-designated place in Sussex County until Lincoln was added in the 2020 United States census. It is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area.

Spring Banke is a historic home located near Clarksville, Sussex County, Delaware. It was built in two sections, both of oak and gum frame construction. The earlier section is 1+1⁄2 stories, with one room on each floor. The later section is two-stories, and has cypress siding. It is a rare example of an 18th-century, small house of a type that was occupied by tenants, small farmers, and other colonists of limited means.It was added to the National Register of Historic Places in 1976.

Millville is a town in Sussex County, Delaware, United States. The population in 2020 was 1,825, It is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area and lies within Baltimore Hundred.

Clarksville is an unincorporated community in Baltimore Hundred, Sussex County, Delaware, United States located just west of Millville. It is centered, more or less, along Delaware Route 26. Many tourists from the Baltimore–Washington metropolitan area pass through the town on their way to and from the Delaware Beaches.The Blackwater Presbyterian Church and Spring Banke near Clarksville are listed on the National Register of Historic Places.

Oak Orchard is an unincorporated community east of the town of Millsboro in Sussex County, Delaware, United States. Oak Orchard is bordered to the south by the Indian River Bay, to the east by Emily Gut (a narrow channel of water) and "the Peninsula", and to the north by Delaware Route 24. Oak Orchard is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area. This area has been the home of the Nanticoke Indian Tribe for over 2000 years and is home to the Nanticoke Indian Museum as well as a yearly Pow-wow held by the tribe. The unincorporated community is home to the Oak Orchard/Riverdale Post of the American Legion. Fire protection is provided by the Indian River Vol. Fire Co., ambulance service by the Mid-Sussex Rescue Squad, and police services are provided by the Delaware State Police as there is no incorporated town to provide such services. Oak Orchard was the scene of a house fire on January 3, 2001, that killed 11 family members.

The Union Wesley Methodist Episcopal Church Complex is a historic church and summer camp meeting facility on Powell Farm Road near Clarksville, Delaware. The property was developed in the post-Civil War era as a summer religious camp for African Americans. It was established around 1873, with an open tabernacle structure for religious functions, surrounded by modest cottages. An 1890 one-room schoolhouse that was used in the education of African-American children was adapted as the camp's refectory in 1922, and in 1959 the Union Wesley Methodist Episcopal Church was built on the property. The school building in particular is notable as one of the best-preserved late 19th-century schools for African-Americans in the state.The complex was listed on the National Register of Historic Places in 2014.

Lingo Landing, Delaware is a locality on the southwest shore of Rehoboth Bay located six miles south of Rehoboth Beach in Sussex County, Delaware.