Half Distance Triathlon Tours Métropole - Loire Valley Training Plan 36-Week Plan for Senior Triathletes 60+ Train Smarter. Stay Strong. Race Through History. With a scenic swim in the River Cher, a flat 90 km ride past Loire Valley châteaux, and a run along tranquil riverside paths, this race is designed for beauty and performance. But to truly enjoy and conquer it, you need a plan built for your experience, goals, and age. This 36-week training plan is created specifically for senior ...