Choose a charity challenge and help us raise vital funds to find a cure for mitochondrial disease. Events with type Swimming - The Lily Foundation
The Lily Foundation logo featuring a butterfly, hearts and an 'x' for a kiss

Fighting mito,
finding hope.

Four Lily Fundraisers, laughing, covered in mud at a Tough Mudder event Four Lily Fundraisers, laughing, covered in mud at a Tough Mudder event

Find an event

Join Team Lily and make a difference

Looking for an exciting way to support a great cause? Join Team Lily and take part in one of our charity events to help us fight mitochondrial disease.

Browse our charity challenges below and sign up solo or with friends and family. Whether you prefer sports or social events, there’s something for everyone.

Find local events near you

To find out what events are taking place closer to home, please select the region you’re interested in: EastNorthern IrelandLondonSouthSouth EastMidlandsNorth EastNorth WestScotlandSouth WestWales and Yorkshire.

Organise your own charity event

Don’t see an event that suits you? Why not organise your own? Whether it’s a personal challenge or a group activity, we’re here to offer support and advice to ensure your event is a success.

Whatever you choose, you’ll be helping to create positive change for those living with mitochondrial disease.

Thank you for your support x

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Swimming

Swim Serpentine 2025

Date:
20 Sep 2025

We have guaranteed places for this 2-mile swim at the largest open water mass participation event in the UK. Aimed at the more experienced swimmer, you’re required to complete two full (1.6km) laps of the Serpentine (it’s recommended that you have previous experience of open water swimming).