Bob and weave.
Swim underneath rows of floating barrels in a lake or pond. They require a deep breath and full immersion multiple times in murky water with your clothing weighing you down. You’ll need your swimming skills to get through this obstacle, and your mental grit-especially on a cold day.
Swimming laps. The colder the pool, the better.
Tough Mudder Tips
Swim on, Mudders℠
Take a deep breath, duck under the barrels, surface on the other side. Repeat. Tough Mudder suggests using the buddy system. Pick a partner to help guide you through the obstacle.