Designed specifically for Senior Triathletes 60+, this comprehensive Long Distance Triathlon training plan prepares you to excel on the fast, scenic Jacksonville course—from the smooth currents of the St. Johns River to the flat, high-speed city bike and run routes. Every session is built on evidence-based endurance science, blending aerobic development, strength maintenance, and strategic recovery so you arrive on race day fit, confident, and healthy. 🏊‍♂️ Swim Preparedness — St. Johns River ...