Lake Pontchartrain
The song is named for and set on the shores of the major estuarine waterbodies of the Pontchartrain Basin, including lakes Maurepas, Pontchartrain, and Borgne. Lake Pontchartrain forms the northern boundary of New Orleans, while Lake Maurepas is west of Lake Pontchartrain and connected to Lake Pontchartrain by Pass Manchac and North Pass. Lake Borgne is east of Lake Pontchartrain and connects to Lake Pontchartrain through the GIWW/IHNC, Pass Rigolets, and Chef Menteur Pass. Lake Borgne extends into Mississippi Sound and therefore is directly connected to the Gulf of Mexico.