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Swim Day essentials

Don't miss these in the lead-up to the event

Your Participant Guide, which includes everything you need to know about getting to the Start Line, will be emailed to you several weeks before the event. 

Your Swim Pack, containing your tag and kitbag, will be posted to the address in your Let’s Do This account, so keep it up to date. If you live outside of the UK, you will collect it closer to the event. 

Swimmers play rock, paper, scissors at the Start
Did you know?

You can rent a ZONE3 wetsuit or a tow-float for Swim Day

Swim Serpentine 2025 finishers
Frequently Asked Questions

Everything you need to know about Swim Serpentine

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Swim Day specifics

To see which roads are affected on Event Day, read our road closures page.

To see what support we offer on Swim Day, read our participants with disabilities page.

Swimmer passes under the Finish
In-depth

What to expect on the route

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Swim Day advice

Swim Serpentine buoys and kayakers