Half Distance 70.3 Triathlon Pennsylvania | Bald Eagle State Park Experience the Half Distance 70.3 Triathlon in Pennsylvania, set in the scenic Bald Eagle State Park. Start with a 1.2-mile swim in Foster Joseph Sayers Lake, with a beach start and calm waters (avg. temp 76°F/24°C). Next, take on the 56-mile bike course through the rolling hills of Happy Valley, featuring climbs over Hublers Ridge and Pleasant Gap, passing by beautiful farmland before finishing near Penn State University. The ...