Swim Serpentine

Swim Serpentine returns!

Swim Serpentine will return to the famous Serpentine Lake in Hyde Park on Saturday 20 September 2025.

This year we will have a handful of 1/2 mile, and 1-mile spaces available in this fantastic swimming event. One full lap of the lake (1.6K) gives you an incredible experience to dip your toes into this iconic event, or challenge yourself to complete half the lake at your own pace.

Make a splash and join our team! 

The 1/2 mile event

Half a lap of the Serpentine Lake at your chosen pace, as part of the one-day open water swimming festival in the beautiful Hyde Park.

Get in touch to apply for a place:

fundraising@theros.org.uk 

The 1 mile event

One lap of the Serpentine Lake at your chosen pace, as part of the one-day open water swimming festival in the beautiful Hyde Park.

Get in touch to apply for a place:

fundraising@theros.org.uk 

“Swim Serpentine is amazing because you are out in the open and you are racing against yourself. You're not even really racing! You're just out in mother nature, trying to take in some of the views. There's so much more enjoyment in that than a race.”
- Mark Durrant, 2023 Swim Serpentine two-mile finisher