Georgetown has a mule barge that still operates on the canal near the downtown area. Of course, it is for sightseeing tourists now. I didn't have my camera as the barge was taking off, but I was totally amazed to see a solo woman grab a rope, lean into it, and singlehandedly pull the entire barge down the canal about 30 yards to where the mules were waiting. It was about 97 degrees out, and she was dressed in colonial garb. Interestingly, a man was on the barge as the driver, just waiting for the mules to be attached.