The 9th Annual Crystal Lake Aquathon - 2026 returns to Three Oaks Recreational Center in Crystal Lake, Illinois on Sunday, July 19th. This event offers something for everyone with a variety of distances and challenges, all benefiting Girls on the Run of Northwest Illinois.
1-Mile Swim
1mi • Start: 07:30:00 • Fee: $55.49
2 Mile Swim
2mi • Start: 07:30:00 • Fee: $55.49
Adaptive Swim Only (1 Mile)
1mi • Start: 07:30:00 • Fee: $55.49
Kids Race
250m • Start: 07:30:00 • Fee: $39.44
Kids Race - Relay
250m • Start: 07:30:00 • Fee: $39.44
Olympic Distance Aquathon
51km • Start: 07:30:00 • Fee: $76.88
Relay - Olympic Distance Aquathon
10km • Start: 07:30:00 • Fee: $141.08
Relay - Sprint Distance Aquathon
5km • Start: 07:30:00 • Fee: $119.68
Sprint Distance Aquathon
25km • Start: 07:30:00 • Fee: $71.53
Nestled along the shores of Crystal Lake, this race invites participants into a picturesque setting where nature’s beauty meets human endurance. The air is fresh as you approach Three Oaks Recreational Center, the sprawling green spaces offering a serene backdrop for early July mornings. As runners and swimmers prepare to take on their challenges, the sun warms the landscape, casting gentle shadows across the paths and waterways. This community event brings together families, friends, and competitors from all walks of life, creating an atmosphere filled with camaraderie and shared purpose.
Since its inception in 2018, the Crystal Lake Aquathon has grown to become a cornerstone of local fitness culture. Over the years, thousands have participated, contributing not only physically but also financially to support Girls on the Run’s mission of empowering girls through running and physical activity. The race is more than just an event; it's a tradition that strengthens community bonds while supporting a worthy cause.
For this year’s edition, participants can choose from four timed distances: Sprint Distance (500m swim + 5k run), Olympic Distance (1 mile swim + 10k run), the 2 Mile Swim, and the 1 Mile Swim. Each course offers its own unique challenges and rewards, making it a perfect opportunity to challenge yourself or simply enjoy the day.
The race itself begins at Three Oaks Recreational Center. The swim portion takes place in a modified quarry surrounded by three islands, while the run traverses trails, sand, and paved paths. Wet suits are permitted if water temperatures fall below 78 degrees Fahrenheit; decisions will be made based on local weather conditions. For those looking to support their friends or family members with disabilities, there's an Adaptive Race featuring a one-mile swim only.
Kids aged 7-12 can join in the fun through the Kids’ Race, which includes both swimming and running elements. Safety is paramount, so lifeguards will be on hand for all swimmers, ensuring everyone’s enjoyment while maintaining their wellbeing. The race also features relay options to encourage teamwork among participants of all ages.
Weather conditions predictably mirror mid-July norms in Illinois—temperatures averaging around 23°C with a slight humidity level of about 73%. Runners should anticipate comfortable weather that makes for pleasant outdoor activity, but be prepared for potential wind gusts. The swim course will likely feel slightly cooler due to water temperatures, which are expected to hover between the mid-18s and low 20s Celsius.
To register for your spot in this exciting event, visit https://raceroster.com/events/2026/113712/crystal-lake-aquathon-2026. Fees vary based on distance chosen but include all necessary gear and support services. Bib pickup will be held at Three Oaks Recreational Center the day before the race from 4 PM to 8 PM, so bring your ID for verification.
The start line is located in front of the main entrance at Three Oaks Recreational Center. Participants must be aged 13 or older unless competing in the Kids’ Race. First-time participants should arrive early to familiarize themselves with course layout and parking options. The race promises a memorable experience, not just for athletes but also as part of the broader Crystal Lake community.
In conclusion, mark your calendars for Sunday, July 19th, 2026, in Crystal Lake, Illinois, for the 9th Annual Crystal Lake Aquathon—a celebration of sport and community spirit that benefits a great cause.
