Got out by 8 or so, but by noon we sad down at a roadside diner to wait out the heat a bit. We went through some low country (down to 3500 feet for the first time since Sinaloa in February) and it was hot. Nancy was heat-affected a couple of times and we had to wait that out. Rough day for her. Ended with a climb at sunset; we camped in front of the presidencia at Nuevos Horizontes.