Met up with a friend at the 117 put-in on a hot, hot Sunday (August 29) and headed upriver through the brilliant light. The parking lot was full (with our cars!) and the river had a number of boats on it, but everybody was moving slowly. We got up to route 27 and then headed back downstream. The current seemed to barely be moving in some places. A good number of herons stood like widely-spaced sentries along the bank, but it was too hot for much wildlife activity besides that. Saw a few trees that had already started turning well before the end of the hot, dry summer.