Here in Bastrop Tx a favorite of mine is Park Road 1. It runs some 15 miles from Bastrop State Park to Buescher State Park, which basically butt up against each other. It's a paved road, and much of it is through shaded pine forest. Not a lot of traffic, usually. It works best in the morning or at dusk, when you have long shadows. The disadvantage is the $5 entrance fee, but I may get the yearly pass (there's a senior discount if I'm not mistaken). Parks are limiting number of people so check at the website to see if passes are available - usually no problem except on weekends.
I typically make use of a camel-back for hydration and a sports drink on my bottle holder for electrolytes. As long as I stay away from riding noon - 5 pm, I feel very little perceived heat stress. Another advantage is I can pull over and walk a few feet into the trees, if I need to shed some excess hydration.
Last edited by Dick Chainey; 07-23-20 at 12:59 AM.