Underwater Tunnels

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.

Strength

Agility

Grit

Camaraderie

September 27 & 28, 2014

Seattle, there will be mud.

Register

Train Tough

Get prepared to take on Probably the Toughest Event on the Planet. Shop our training gear.

BUY

Suggested Training

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.

DO GOOD. FEEL GOOD.

Volunteering at a Tough Mudder event isn't just about giving back — it's about pushing Mudders forward. With helping hands, words of encouragement and an attitude as positive as the day's atmosphere, volunteers ensure that no Mudder gets left behind.