Join the Half Distance Triathlon in Cascais, Portugal, a premier event combining scenic beauty, vibrant support, and world-class courses. Race Highlights Swim: A 1.9 km (1.2 mile) single-loop swim in Ribeira Beach’s protected bay, featuring clear waters and cheering crowds. October water temps: 17-19°C (62.6-66.2°F). Bike: A scenic 90 km (56 mile) one-loop ride through the Sintra-Cascais Natural Park, Guincho Beach, and Lisbon landmarks, including a lap on the Estoril F1 Circuit. Elevation ...