09/03/2026
***ATC Big Swim Sunday
It’s time to go BIG!
The 7th Annual ATC BIG Swim returns to Red Top Cove for one of our favorite open-water challenges of the season.
Swimmers can choose a distance from 1K to 5K in a timed, fully supported open-water swim. Pick the distance that fits your current fitness, training goals, and comfort level—and make the day your own.
Training for a fall 70.3, 140.6, or long-distance swim event? Use the BIG Swim as a supported race-distance simulation to test your pacing, endurance, fueling, and open-water confidence before race day.
Or forget the upcoming race and simply come out to see how far you can swim!
Take on the 5K and earn an ATC magnet for finishing!
Choose your challenge. Swim your distance. Finish BIG.
Event Details
When: Sunday, September 13, 2026
Time: 9:00 AM–12:00 PM
Where: Red Top Cove
50 Lodge Road SE, , GA 30121
Parking: $10 per vehicle, payable at the Visitor Center office or the green kiosk near the entrance.
Distances: 1K, 2K, 3K, 4K or 5K. Please indicate your projected swim distance at check-in.
Format: Three hours of supported open-water swimming with buoy-marked courses allowing swimmers to complete their selected distance.
Sign-up: https://clients.mindbodyonline.com/classic/ws?studioid=30262&stype=-7&sTG=38&sVT=17&sView=day&sLoc=1&date=09/13/26
Please choose a distance that matches your current fitness and open-water comfort level.
Safety Requirements
For the safety and visibility of everyone in the water, all swimmers are required to wear a bright-colored swim cap and use a safety swim buoy — no exceptions.
Need a swim buoy? You can purchase one in advance through the ATC Mindbody online store by selecting “Swim Buoy Purchase” at checkout.
Please note: The ATC BIG Swim is an adult-only event for ages 18 and older.
How to Join the Big Swim
There are several ways to take part in ATC Big Swim Sunday, and you do not need to be a current ATC member to participate.
Current ATC Outdoor & All-Access Members
Big Swim Sunday is included with your membership. Simply register for the Open Water Swim Event through MINDBODY using the Participant button below.
Not an ATC Member?
No problem! You can participate by purchasing one of the following:
Single Drop-In: $25
10-Class Pack: $200
Outdoor Membership: $50/month + $50 one-time enrollment fee
Outdoor Membership includes access to all ATC outdoor training sessions, including open-water swims, plus member online resources and community access.
Here is the link to register: https://clients.mindbodyonline.com/classic/ws?studioid=30262&stype=-7&sTG=38&sVT=17&sView=day&sLoc=1&date=09/13/26
New to MINDBODY? You’ll be prompted to create an account before registering. Current members can simply log in and reserve their spot.
After registering, you’ll receive a confirmation email. As Big Swim Sunday approaches, we’ll contact participants to confirm target swim distances and provide the Athlete Guide with everything you need to know for the event.
Rather Volunteer?
We’d love to have you on the water with us! We’re looking for SUP safety paddlers and swim angels to help support our swimmers.
Email [email protected] to be added to the volunteer list.