Swim the Suck

Ten miles of freshwater slide through the Tennessee River Gorge, where the river carved its way. This striking passage forms the arena for Swim the Suck, an open water swimming race held in the Tennessee River Gorge near Chattanooga, Tennessee. Established in 2010 by Karah Nazor, who also founded the Chattanooga Open Water Swimmers (C.O.W.S.), the marathon brings swimmers into one of the most scenic river valleys in the United States. The course spans 16,093 meters, sending swimmers downstream from the Suck Creek Boat Launch. Every solo swimmer must navigate alongside a personal pilot, creating a synchronized pair that works together from the launch to the final timing mat. Having a dedicated paddler right beside you provides constant navigation, hydration feeds, and reassuring company as the miles unroll down the canyon.

The weekend gets underway on Friday evening with a pre-swim briefing and pasta dinner before everyone rests ahead of race morning. Taking place in October, the race gathers participants for an orderly mass start into the cool river current. Conditions along the gorge can shift during the journey; a strong headwind kicked up choppy waves along the very first mile in 2016. Sudden autumn rain showers can also roll through the canyon, but having your pilot steady at your shoulder keeps you tracking cleanly through the chop until the river smooths out again. At the finish line, the atmosphere turns into an energetic riverside gathering rooted in local hospitality. Swimmers and their pilots celebrate with hot tacos and cold local craft beer, swapping stories of their descent down the gorge.

Finishers receive unique prizes featuring original local artwork, including custom wooden cutting boards branded with the word 'SUCK', as presented in 2015. One past competitor confessed that their face ached long after leaving the water, tired not from the physical effort but from ten continuous miles of smiling.

The Tennessee River Gorge: limestone canyon and springs

Rather than turning away, the Tennessee River sliced directly through the Cumberland Mountains, cutting a steep canyon forty-two kilometers long. Rainwater that sinks into the limestone of the surrounding plateaus eventually resurges through natural cold springs straight into the bed of the Tennessee River, continually feeding the body of water through which swimmers glide.

The Tennessee River Blueway: sturgeon reintroduction and island wildlife

The race course traverses a key stretch of the Tennessee River Blueway, an eighty-kilometer designated water trail stretching from the Chickamauga Dam downstream to the Nickajack Dam. The steep walls of the canyon shelter an exceptionally rich plant community, harboring more than a thousand distinct varieties of vegetation. Among these lush banks grows the rare mountain skullcap, finding refuge in the moist microclimate created by the river's deep limestone gorge. Midstream sits Williams Island, a protected 450-acre island that parts the river channel into twin corridors of moving water. The island is preserved entirely for wildlife, free from permanent human habitation, allowing animals to roam undisturbed along the shoreline. Lake sturgeon had been declared extinct in the Tennessee River in 1961 due to past environmental pressures. Since then, a dedicated restoration program has released more than 180,000 young lake sturgeon.

Moccasin Bend: twelve thousand years along the riverbanks

Excavations across Moccasin Bend have uncovered continuous evidence of human presence stretching back 12,000 years. Archaeological remains elsewhere in the Tennessee River Gorge confirm that native people used these sheltered waters and wooded canyon slopes for at least 10,000 years. At the Vulcan Site on the peninsula, researchers discovered the remains of a Late Archaic family house dating to 1335 B.C., recognized as one of the oldest permanent domestic structures in the southeastern United States. On Williams Island, Native American tribes sustained thriving seasonal and permanent villages from around 1000 through to 1650. By the nineteenth century, early settlers recognized this river bend as an optimal point for flatboat navigation and crossing. John Ross set up a trading post and swing ferry anchored on McClellan Island in 1816, while Brown's Ferry established a crossing between Lookout Valley and Moccasin Bend to ferry travelers and supplies across the current.

Chattanooga waterfront: Walnut Street Bridge and Coolidge Park

The skyline above the river is defined by the Walnut Street Bridge, a pedestrian truss span stretching 2,376 feet across the water. Completed as the very first non-military highway bridge over the Tennessee River, it closed to motor traffic in 1978. Visitors can board a 65-foot catamaran tour boat to cruise into the gorge. Seeing the canyon from the boat deck gives you a clear sense of the grandeur that awaits when you take to the water on race day.