Prepare to race strong and smart at the stunning Full Distance Triathlon Switzerland-Thun. This 36-week triathlon training plan is tailored for Senior Triathletes 60+, focusing on endurance, strength, and recovery designed to meet the unique needs of mature athletes. 🏊 SWIM – 3.8 KM | Lake Thun Train for the clear, calm waters of Lake Thun with open-water drills and swim efficiency workouts to master the two-loop course and Australian exit. Wetsuit-friendly sessions prepare you for 18–22°C ...