HALF IRONMAN 70.3 Waco, where the Brazos River challenges your swim skills with a thrilling point-to-point, down-river adventure. Encounter curious river critters in this survival-focused swim, boasting a balmy 65°F/18°C water temperature—a nature's ice bath with a touch of river funk. The Heart of Texas bike segment offers smooth roads akin to a freshly buttered pancake. Experience long, flat straightaways perfect for achieving aero greatness. Say goodbye to unexpected turns and focus on the ...