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Envision yourself undertaking a significant open-water challenge, navigating the expansive waters of Cardiff Bay with the city's impressive skyline as your guide. This is more than a race; it's a true test of endurance and determination. The Cardiff Bay Open Water Swim 2025 proudly presents the demanding 3800m race.

Designed for experienced open-water swimmers and triathletes seeking to push their boundaries, this event offers an opportunity to achieve a remarkable feat. This event is primarily for triathletes looking to warm up or gain open water experience; however, it is open to everyone.
Feel the surge of adrenaline as you navigate the course, knowing you're taking part in a meticulously organized and safe event.
Beyond the challenge, you'll be rewarded with breathtaking views of Cardiff Bay and the shared sense of accomplishment with fellow swimmers. This is a celebration of unwavering spirit, athletic prowess, and the vibrant atmosphere of Cardiff. Secure your place, rise to the challenge, and make history at the Cardiff Bay Swim 2025!


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