Running
33.3km
33.3 km
Running
33.3km
33.3 km
Running
Half Channel
5 km
We created UltraSwim 33.3 through a love of open-water swimming and a desire to create a new event that inspires people and gives them the platform to push themselves out of their comfort zone and benefit from it. Our event is incredibly diverse, we always say, it might not be for everyone, but everyone can do it. With the proper training, any determined swimmer can complete an UltraSwim 33.3.
Attendees are provided with various nutritional options during the event.
Swimmers will receive support from experienced pacers throughout the event, enhancing the sense of community and teamwork.
Last updated: May 31, 2026, 01:04:01 PM
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