There's one in Columbus, Georgia near here on the Chattahoochee River. It's nice in its own way...

http://columbus.vanderkrogt.net/us2/columbus_ga_riverwalk.html

...but my favorite is Town Run in Shepherdstown. Have you ever tried to find all of the really cool places that little creek runs through, under, over, and in between? If you haven't, I suggest getting together with Claymore and having him give you a tour. It's very very cool.