The Half Distance Triathlon in Chattanooga begins with a 1.4 mile swim in the Tennessee River, starting with a rolling start at Ross's Landing Park. Spectators can view the swim from the Veterans and Market Street Bridges as well as the Tennessee Riverwalk. The water temperature averages in the low 70 degrees Fahrenheit. The 56-mile bike course heads south for 11 miles before looping through north Georgia, offering scenic views alongside Lookout Mountain on well-maintained roads. After the ...