Half Distance Triathlon – Buenos Aires, Argentina Swim – 1.9 KM in Spectator-Friendly Lago Regatas Dive into the calm, warm waters of Lago Regatas in Palermo, tackling a 2-loop swim course designed for smooth navigation and high energy from cheering spectators. (Avg. Water Temp: 64°F / 18°C) Bike – 90 KM on the Iconic Buenos Aires Highway Experience one of the fastest triathlon bike courses with three flat loops on a closed, high-speed highway. The smooth pavement and minimal elevation make ...