Welcome to the exhilarating challenge of IRONMAN 70.3 Switzerland, set against the breathtaking backdrop of Rapperswil-Jona. This race is not merely a test of endurance; it's a harmonious blend of nature's grandeur and human tenacity. Dive into the crystal-clear waters of Lake Zurich, as the one-loop 1.9 km (1.2 mile) swim course unfolds at the Obersee, right next to the stadium. The majestic Swiss Alps stand tall, casting reflections upon the serene waters, propelling you forward with the ...