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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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Chillswim Coniston is one of those swims people talk about for years afterwards. At 8.4km, it’s a proper long-distance lake swim - long enough to feel like a real achievement, but very doable with the right preparation. It’s scenic, social & epic, with a course that rewards good preparation & calm pacing. By Rebecca Wetten, Co-Founder & Head Coach at Catch
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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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Practical stuff to know Start: Totnes (near Steamer Quay) Finish: Dittisham on the River Dart Age: 18+ Parking: Park at the finish in Dittisham where possible - shuttle boats transfer swimmers up river to the start in Totnes. Limited local parking, so plan ahead Spectators: Best at the finish in Dittisham - it’s lively, welcoming & far easier to access than the start Feeding: There's a couple of floating feed stations on the course with fun, friendly volunteers. Water & refreshments are also available at the finish, which has a festival feel. Wetsuits: Wetsuits are compulsory unless you have pre-approved skin-swimming permission & meet the temperature criteria. For most swimmers, a full-length wetsuit is the safest & most comfortable option for 10km downriver.
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