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Marathon Swims Partners

Marathon Swims Owners

The Swimathon Foundation is the charity behind the world's biggest fundraising swim, Swimathon and owners of Marathon Swims..


 In their 30 year history, Swimathon swimmers have raised an incredible £50 million for such well known charities as Marie Curie, Sport Relief, Macmillan Cancer Support, NSPCC, The British Heart Foundation and The Prince's Trust.

The Swimathon Foundation also supports smaller organisations that are involved with local swimming projects through its Community Grants scheme. In the past a variety of initiatives, including swimming programmes for those with special needs, participation schemes by youth groups, clubs for the elderly, swimming clubs and disability groups have all benefitted from its support.


Alzheimer's Society is the official charity partner of Marathon Swims 2023. 

By 2025, there will be 1 million people in the UK living with dementia.

Alzheimer’s Society are the only UK charity who fund research, act as a powerful force for change through campaigning, and give expert advice, guidance and support through the most challenging days for people affected by dementia. We are a safe space to turn when people need us, giving help and hope to everyone living with dementia that there is a brighter future ahead.


Marathon Swims Venue Partner


Everyone Active is the country's number one activity destination.

It's our mission to get everybody doing at least 30 minutes of activity five times a week. Whether you're into swimming, going to the gym, taking on a group exercise class, or enjoying activities with the whole family, there's something for everyone to enjoy.

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KitBrix, keep it together, the ultimate modular bag system.


100% waterproof base. Separate wet and dry kit. Be race ready. Recover quicker. Reduce fuss. Get organised. Get KitBrix

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Outdoor Swimmer Magazine

Outdoor Swimmer is the magazine for outdoor swimmers by outdoor swimmers. Each issue of Outdoor Swimmer magazine is a celebration of swimming outdoors in which we share inspirational stories, wild swimming spots, technique advice, training sessions and stunning photography.


Participation Sport Ltd.

Participation Sport Ltd. are the creators and founders of Marathon Swims. The Participation Sport team have over 15 years experience in creating, promoting and operating mass participation sport events in the UK and overseas.

Participation Sport Ltd. are also the creators of Ultra London - London's ultra marathon and Original Marathon - London's newest, oldest marathon.


Wavecrest Swimming

Swimming coaching company Wavecrest Swimming was founded by Head Coach Cassandra Patten, an Olympic Bronze Medallist, double World Championship Silver Medallist, European Cup Champion, Swimming World Cup Winner, a professional swimming coach and most importantly an enthusiastic approachable person who takes great joy from helping people to improve and enjoy their swimming.


Surprise yourself with a unique type of holiday. SwimQuest specialise in helping people of all ages and abilities explore and enjoy the open water, and have recently won the Feefo Gold Trusted Service Award for their outstanding customer reviews.


Complete beginners and experienced swimmers can benefit from SwimQuest’s expert swim coaching and beautiful island-to-island and coastal swimming. Just like a walking or a cycling holiday, this is a fantastic way to explore stunning parts of the world from a unique, aquatic vantage point, meet like minded individuals and come home energised.

To find out more, visit 


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