Half Ironman 70.3 Waco, where the swim is less about graceful strokes and more about surviving the currents of the Brazos River. It's a point-to-point, down-river swim that promises both adventure and a potential rendezvous with some curious river critters. Don't worry about the swim, though—the water's a balmy 65°F/18°C. Just think of it as nature's ice bath with a touch of river funk. Now, onto the bike segment—affectionately known as the Heart of Texas, where the roads are smoother than a ...