13.1 miles - 21.1 Kilometers. A spectacular and now USATF CERTIFIED course along the water overlooking Puget Sound's Saratoga Passage. Start and Finish at Langley's Choochokam Arts Festival. Spend the day, or the weekend, on beautiful Whidbey Island! And get in a great workout! For more information go to the event website, click the following link: Langley Half