2nd Annual Castle 10K Swim, Colorado. The highest elevation sanctioned 10K swim, July 16th
Come join the greatest land locked open water swimming community in the world and swim the highest officially sanctioned 10K race on the planet, at 8025 feet/2446 meters. Swim in beautiful Wellington Lake, Colorado near Bailey, CO. The favorite training site for MSF award winners Sarah Thomas and Craig Lenning.
http://www.usopenwaterswimming.org/Castle10KEntry.html more informaton on Wellington Lake https://castlemountainrec.com/