If it seems like I spend a lot of time wandering Georgetown and taking photos its because I do spend a fair amount of time doing just that. Its what I do between bouts of writing and job hunting. Sometimes I go out with a real camera, but most times it is only my Blackberry, as with the photos here of the C&O Canal. At the moment it is nearly drained and the canal bed is frozen, making it easy to jump down into it and take a walk, as I did today. Fascinating what you see. Lots of shells (I assume deposited by birds), and lots of human detritus (a shoe, a pair of eye glasses, a plastic bracelet, and so on).
I recommend this walk. I found an easy place to crawl down into the canal near the Key Bridge crossing. There are a couple of other places, too, and near Wisconsin there is a ladder. While the bed is firm it is not rock hard. You don't need mud boots but you do need sturdy hiking shoes.
In some patches you may have to scramble over ice or stay close to the wall, but for the most part there are wide swatches of canal to walk upon. Its fun. Do it. A unique Georgetown experience.