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The 9km Thames Marathon is a prestigious and demanding open-water swim that guides participants along a stunning stretch of the River Thames from Henley-on-Thames to Marlow.
This point-to-point endurance challenge is renowned for its scenic beauty and varied landscapes, making it a bucket-list event for seasoned swimmers looking to push their limits.
As swimmers journey through 9km of tranquil river waters, they are treated to views of lush countryside, charming villages, and historic bridges along the way. With exceptional event organization, safety support, and a friendly atmosphere, the Thames Marathon offers a rewarding experience for those ready to tackle a true long-distance challenge. Whether chasing a personal best or savoring the journey, this iconic swim promises an unforgettable adventure on one of the UK's most famous rivers.
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The Chillswim Coniston 5.25 Miles End to End is a premier open water swimming event held on Saturday, June 21, 2025, in the picturesque Lake District. Participants will swim the full length of Coniston Water, starting at the southern end and finishing at the northern tip near Monk Coniston Car Park.
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The Dock2Dock swim offers a unique opportunity to experience open water swimming in the heart of London’s Royal Docks. With towering historical cranes lining the water and the iconic skyline of Canary Wharf and the O2 Arena in the background, this event combines the thrill of urban swimming with the challenge of long-distance racing.
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The 4 Mile Henley Swim is a challenging open water race set in the River Thames at Temple Island Meadows during the Henley Swim Festival. This swim is perfect for those looking to test their endurance over a longer distance, offering a scenic and rewarding course along the historic river. With a mass start, participants will experience the thrill of open water racing in one of the UK’s most iconic swimming locations.
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The Dart10k is a challenging yet stunning open water swim, taking participants on a 10-kilometer journey along the River Dart in Devon. Starting in the historic town of Totnes, swimmers follow the river to the Greenway Estate, completing the swim surrounded by breathtaking natural beauty. Although the swim covers a long distance, the current in the River Dart is often a helpful force, working with you as you swim downstream, making it easier than swimming a standard 10k.
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