The Full Distance Triathlon in Wales – Pembrokeshire is not your average race. With a cold-water sea swim, relentless hills through the Pembrokeshire Coast National Park, and a punishing, four-loop marathon through Tenby’s historic town center—this course exposes every weakness and rewards only the most prepared. Our 24-week Full Distance Triathlon Training Plan isn’t about crossing the finish line—it’s about racing with purpose, precision, and resilience. It’s built for advanced triathletes ...