Yes...there are two.
One "starts" at the Congress Park neighborhood pool...it runs right next to the water, and brings you out on the main road, just a few steps from the corner where the buses drop people off to go to the Marketplace...it's about a 10-minute walk from the Congress Park pool...
The other "starts" behind the Turf Club restaurant...you go over the bridge and bear to the left once you cross the water...the sidewalk takes you by the parking lot (it's slightly shorter if you just cross the parking lot itself) and takes you to West Side, right by Cirque du Soleil...this is also a short walk, altho a bit longer than Congress Park to Marketplace...
Both are nice walks...very easy access to DTD...of course, if you have sore feet or are just tired, you can also hop an SSR bus to or from DTD, or take the water taxi--