Horsetooth Open Water Swim

4200 W County Rd 38E
Ticket price
$80 entry

Experience the Thrill of Horsetooth Open Water Swim in Colorado's Rocky Mountains

Attend the Horsetooth Open Water Swim for a thrilling swim amidst Colorado’s stunning Rocky Mountains – register now and book your stay

Start date
7 September, 2025
End date
7 September, 2025

Event details

Nestled in the heart of Colorado, the Horsetooth Open Water Swim at Horsetooth Reservoir in Fort Collins is an event that combines stunning natural beauty with the thrill of competitive swimming. Founded in 1999 by English Channel swimmer Oliver Turner, this annual event has become a cornerstone of open water swimming, attracting athletes and enthusiasts alike.

Set against the picturesque backdrop of the Rocky Mountains, the swim takes place at an elevation of 5,430 feet, offering a unique and challenging experience. Participants can choose from various distances, including the flagship 10 km marathon swim, as well as shorter 2.4 and 1.2 mile courses, ensuring there is something for every skill level.

This event is ideal for seasoned swimmers looking to test their endurance, as well as beginners eager to experience the exhilaration of open water swimming. The scenic route, which alternates between north to south and south to north each year, provides breathtaking views of the reservoir and surrounding landscape.

The Horsetooth Open Water Swim is not just a race, but a celebration of physical prowess and the beauty of nature. With its rich history and stunning location, it is an event that promises an unforgettable experience for all who participate. Whether you are a competitor or a spectator, this event is a must-attend for anyone who loves swimming, nature, and the spirit of adventure.

Event Type and Audience

Fundraiser All Ages

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Horsetooth Open Water Swim
4200 W County Rd 38E