#LitchfieldHillsTri. The triathlon features a 1.5K swim in a crystal clear lake, stunning mountain vistas along the 40K bike course, and scenic, rural back roads during the 10K run. The Aqua/Bike event will run simultaneously with the triathlon on the same swim & bike course. The duathlon starts with a 4.5K run and then joins the triathlon’s bike course and finishes with a 10K run.