I went kayaking solo with one of the wee wolves at a new location -- putting in at Dam#4 on the upper Potomac, and pulling out at Snyder's Landing.
The “useful tip of the day” was the admonition to be sure to put in BELOW the dam, rather than at the very convenient boat ramp, with parking lot, just ABOVE the dam. There’s no water signage in front of the dam — you either know OR you meet Darwin and Jesus all at once.
To kayak downstream, you have to park on the road shoulder, portage the kayak across a canal and through a small patch of woods, and launch from the mud. No problem — just an interesting set of choices that someone made.