The Bonnet Carre Floodway is a coastal spillway and flood control structure in Louisiana, designed to shunt Mississippi River floodwaters into Lake Pontchartrain. For paddlers, this creates a complex, primarily saltwater or brackish environment connected to the lake via canals like Barbars Canal. The area is part of a larger wetland system, offering flatwater paddling through backswamp areas and canals. The floodway itself contains approximately 3,500 acres of land and water for public recreational use, including boating. Access points are not explicitly detailed, though a popular boat launch is located approximately 75 km downriver from the floodway, suggesting launches exist in the broader region. The water body is influenced by tides from Lake Pontchartrain, with a NOAA tide station (I-10 Bonnet Carre Floodway, Station 8762483) recording a very small mean tidal range of about 0.6 feet. Tides here are diurnal, meaning a single high and low tide most days. Paddlers should be aware that the area is used for hunting waterfowl and other related sports, which may present a seasonal hazard. The St. Charles Wetland, bounded in part by the Bonnet Carre Spillway, is an excellent recreational area for boating and nature study, featuring abundant wildlife. The surrounding landscape holds historical and archaeological significance, with sites like the Trepagnier Site and references to the German Coast Settlement. The aesthetic is that of a Louisiana coastal wetland, with scenic driving routes like the Great River Road passing nearby. The connection to Lake Pontchartrain via Barbars Canal suggests potential for longer journeys. Facilities are limited, with the area offering opportunities for primitive camping and picnicking alongside boating.