I was planning to do about 4.5 hours of a route with more or less non-stop hills this morning, but that turned out to be a bad plan on a 95-degree day. Still did 3.5 hours of the route, but I'd brought only 28 oz. of water. Not happy for the last couple of hours of the ride.

At the turnaround point, I could have and should have gone half an hour out of my way to get to a (somewhat) flatter route for the ride back.