EPIC ADVENTURE SWIM RACE™
SO MUCH MORE THAN JUST A RACE.
Join an amazing community of like-minded swimmers from all over the world for the adventure of a lifetime. #4Greece just launched! 2025 ENTRIES NOW OPEN! #5Montenegro SOLD OUT, don’t miss out - book now!
A new category of open water swim event
Step out of your comfort zone with UltraSwim 33.3
Think multi-stage car Rally
not F1®
Think ultra-trail
not road-running marathon.
UltraSwim 33.3 offers swimmers the opportunity to complete the iconic 33.3km distance of the English Channel, spread over 5-7 swims, over a 4-day long weekend in a variety of locations.
Designed around a timed point-to-point open water ‘off-road’ format (we hate laps!), our races take place in varied and challenging conditions in stunning locations across the world. Each UltraSwim 33.3 event is different, and each swimmer’s experience is different but as race organisers, there are a few things we can guarantee: world-class safety and event management, a comprehensive preparation programme, and premium support services - we’ve got your back and we’re here to help you swim like a pro. Having said that, it will still come down to you, physically and mentally, for you to accomplish your dreams and become your best self.
Select a sporting format
(Skins or wetsuit)
Choose your package
Come as a couple or family by adding on our F3 (Friends, Family and Fans) activity and transfer package. You loved ones can get involved in the event as much as they want, or simply make the most of a great location. Swimming all done by lunchtime every day! “I felt so included and really part of every step of the experience” Estefanía, #2Montenegro 2023
“Hands down the best open water event I've participated in. The level of professionalism and attention to detail was the best I've seen, equal to any world-class event out there.”
Jay P, Australia
DOWNLOAD OUR
PACKAGE INFORMATION
2023 non-English versions available
(for background reading only)
Join us on Strava
Whether you are a participating or not - in the 6 months leading up to the next event we’ll publish each week a pick of the best 33.3 training sessions.
