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Whether a race, special group ride, training opportunity, or cycling-related community event, the 303 calendar showcases it all. To have an event posted here please follow this link: Event Policy Submission & Guidelines.
Castle 5k/10k Open Water Swim
August 18 @ 7:30 am - 11:00 am
Wellington Lake, Bailey
The Castle 5K/10K is a swim in its fourth year, but its first with the Mountain Swim Series. This event is the highest altitude organized marathon swim event in the country at ~8,000 feet. It is hosted at Wellington Lake, near Conifer in Colorado. Both 5K and 10K swims are available.
Event details and registration here
Mountain Swim Series Events :
June 22: Solstice Swim, Union Reservoir, Longmont
July 20: Carter Lake Crossing, Carter Lake, Loveland
August 11: Chatfield Lake Classic, Littleton
August 17: The Cliff Backyard Ultra, Bailey
August 18: Castle 5k/10k, Bailey