HALF IRON MONTERREY MEXICO - The swimming segment unfolds in the tranquil embrace of Santa Lucia River. Embark on a single-loop journey spanning 1.2 miles (1.9 kilometers) through clear, warm waters, averaging at 75°F (24°C). It's a rejuvenating swim experience that sets the tone for the challenges ahead. Transitioning from water to wheels, cyclists tackle the lightning-fast 90KM bike course. Predominantly flat, with occasional rises at vehicle bridges, the smooth pavement of Constitution ...