September 8, 2024
Registration is Open
Come join us for the 25th Anniversary of the 1st Horsetooth Swim 10K held in 1999. Special commemorative Turkish Towels for 10K finishers!
New in 2024, you can buy Merchandise to celebrate the
25th Anniversary of the Horsetooth 10K
Other Open Water Events in Colorado for 2024
- Mountain Swim Series
- Solstice Sunset Swim, Union Reservoir, June 23, 2024
- Carter Lake Crossing, July 20, 2024
- The Castle 5k/10k, Wellington Lake, August 24, 2024