The Styx River flows for 41.3 miles through Baldwin County in southwestern Alabama, rising near Bay Minette and traveling southward to join the Perdido River near Seminole. Named for the mythological River Styx from Greek mythology, this tributary system carries a distinctive character as one of Alabama's blackwater streams, with tannin-stained waters flowing over white sand bottoms through heavily forested banks.

The navigable section spans approximately 26 miles from near Steelwood to the confluence with the Perdido River, offering paddlers a range of experiences from gentle flatwater to mild Class I-II rapids in the upper reaches. The river maintains relatively shallow depths throughout, making it best suited for canoes, kayaks, and small shallow-draft boats. Access remains limited along the waterway, with primary launch points at bridge crossings along County Road 87 and U.S. Highway 90, plus connection opportunities via the Perdido River at Seminole Boat Ramp on Brown's Road.

Styx River Canoe and Tube Rental on Waterworld Road in Robertsdale serves as the hub for recreational paddling, operating since 1986 as a family-owned business. They offer two main trips: a 4-mile short trip and an 11-mile long trip, both featuring cool, clear water flowing through pristine natural corridors. The outfitter provides shuttle service from their parking area to put-in locations, eliminating the typical river shuttle logistics.

A notable feature distinguishing this waterway from other coastal plain rivers is the presence of a waterfall located upstream of County Road 68—one of the few waterfalls in south Alabama. The river's blackwater nature creates a unique ecosystem supporting largemouth bass, bluegill, and longnose gar, making it popular with anglers as well as paddlers.

The upper sections above Jacques Road present more challenging conditions with scratchy passages, logjams, and occasional portages required, particularly during lower water levels. These stretches demand intermediate skills and willingness to navigate tight squeezes and obstacles. In contrast, the established rental routes offer relaxed paddling through pine and hardwood forests with minimal technical demands.

Where U.S. Highway 90 crosses the river, a roadside sign reads "Charon Retired"—a humorous reference to the mythological ferryman of the River Styx—reflecting local character and the waterway's namesake. The river remains accessible year-round, though water levels fluctuate seasonally. Baldwin County's mild climate allows for extended paddling seasons, with summer being particularly popular for tubing and family float trips on this locally cherished waterway.