Saluda

The Saluda can be run from the dam all the way to town varies flat and II-III white water - DO NOT run the cascade above the zoo play area unless you:
a: have a death wish
b: really know what you're doing, have a recovery team and paid up life insurance or a really good medical plan, sharp rock, rebar and misc mess from a destroyed dam fill the entire width of the river.
From the dam to town is 4-8 hours depending on motivation and water level. Good play water and fishing along the entire length.
Put in at Saluda Shoals Park and take out at Zoo or portage Zoo Rapids and float through a Cls II rock garden down to the confluence with the Broad and onto the Congaree to the Rosewood (Barney Jordan) boat ramp (another hour or so). My now 15 year old made the trip his first time at age 4 in a two seat Kayak. I've floated it with a troop of Scouts in 18' Grummans, two seat open kayaks, A 16' Explorer and in my own play boat. Every boat type has a slightly different experience but I enjoy it every time.