Chase Garden Creek is a significant estuarine system located along the border between Dennis and Yarmouth, Massachusetts, flowing into Cape Cod Bay. This extensive saltwater creek features 18.82 miles of coastline with the largest marsh systems of all Dennis marine areas, covering approximately 1,500 acres of salt marsh habitat. The creek experiences substantial tidal fluctuations with an average 9.5-foot range twice daily, creating diverse fishing opportunities in both shallow flats and deeper channels. As the longest of three north coastal estuaries in Dennis, Chase Garden Creek provides vital nursery habitat for numerous marine species while offering excellent recreational fishing opportunities for both shore-based and small boat anglers.