Here in Tempe, AZ, we’re having a “Rotary River Rally,” or cardboard boat race. It’s never too late to register a boat, and it looks like so much fun. The pre-event boat show is today, and the regatta starts tomorrow morning. This is the 9th year they’re running this, so it makes me wonder how many cardboard boats are at the bottom of the lake! (Thanks, Matt!)

Photo by Flickr user bigcoyote33.