Dennis Creek is an 8.8 miles (14.2 km) tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of Delaware Bay

Delaware Bay

Delaware Bay is a major estuary outlet of the Delaware River on the Northeast seaboard of the United States whose fresh water mixes for many miles with the waters of the Atlantic Ocean. It is in area. The bay is bordered by the State of New Jersey and the State of Delaware...

 in Cape May County

Cape May County, New Jersey

-Climate:Being the southernmost point in New Jersey, Cape May has fairly mild wintertime temperatures. Contrary to that, the summertime has lower temperatures than most places in the state, making the county a popular place to escape the heat. It is in zone 7a/7b, which is the same as parts of...

, New Jersey

New Jersey

New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

 in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.

It originates in the Great Cedar Swamp to the southeast of Dennisville, New Jersey

Dennisville, New Jersey

Dennisville is an unincorporated area in Dennis Township, in Cape May County, New Jersey, United States. It is part of the Ocean City Metropolitan Statistical Area. Its postal ZIP Code is 08214....

. Passing between Dennisville and South Dennis, it descends into the tidal marshes and joins Sluice Creek

Sluice Creek

Sluice Creek is a tributary of Dennis Creek in Cape May County, New Jersey, in the United States.-References:*Gertler, Edward. Garden State , Seneca Press, 2002. ISBN 0-9605908-8-9-External links:*...

 and thereafter forms the boundary between Dennis

Dennis Township, New Jersey

Dennis Township is a township in Cape May County, New Jersey, United States. It is part of the Ocean City Metropolitan Statistical Area. The township population was 6,492 as of the United States 2000 Census...

 and Middle Townships

Middle Township, New Jersey

Middle Township is a township in Cape May County, New Jersey, United States. It is part of the Ocean City Metropolitan Statistical Area. As of the United States 2000 Census, the township population was 16,405....

. Further below, the channel of Roaring Ditch

Roaring Ditch

Roaring Ditch is a tidal waterway approximately 1.6 mi in length connecting East Creek and Dennis Creek in Cape May County, New Jersey in the United States.-References:...

 directs much of the flow of East Creek into Dennis Creek before reaching the bay.

Tributaries

• Roaring Ditch
  Roaring Ditch
  Roaring Ditch is a tidal waterway approximately 1.6 mi in length connecting East Creek and Dennis Creek in Cape May County, New Jersey in the United States.-References:...
  
  
• Old Robins Branch
• Crow Creek
• Sluice Creek
  Sluice Creek
  Sluice Creek is a tributary of Dennis Creek in Cape May County, New Jersey, in the United States.-References:*Gertler, Edward. Garden State , Seneca Press, 2002. ISBN 0-9605908-8-9-External links:*...