A complete journey around the island of St Mary’s, swimming safely in every bay and connecting them with stunning trails that showcase breathtaking scenery.
Swimrun is a beautiful sport which allows you to flow on and off the islands seamlessly transitioning from running to swimming and back to running again.
There are 5 events over the long weekend; something for the first timer wondering what the fuss is about, to an ultra endurance event taking athletes between 5 and 9 hours to complete the 36km course. The courses have very technical running and open water swimming. Be prepared for a real adventure! Participants will experience spectacular scenery as they make their way under their own power over the land and sea that make up the Area of Outstanding Natural Beauty known as the Isles of Scilly.
The Scilly Swimrun is the grand finale weekend of the annual Ocean Scilly Festival.
Travel & Accommodation
You will need travel by air or sea to Scilly – you can only drive as far as Cornwall. You will also need accommodation – there are campsites, B&Bs, hotels and self-catering cottages, but accommodation can get booked up early.
Mandatory Kit
Support
They provide energy stations throughout the swimruns. However you are free to carry what you like. Swimrunners may wish to carry multiple gels emptied into a soft flask to be used when they need it. Please do not dispose of anything en route.
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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 1 Mile Henley Swim is a classic open water challenge set in the River Thames at Temple Island Meadows during the Henley Swim Festival. Swimmers can choose between two start options: the Mass Start, for those who enjoy a competitive, race-style experience, or the Rolling Start, which offers a more relaxed and staggered entry into the water. This scenic swim provides a rewarding challenge for both new and experienced open water swimmers looking to enjoy the historic Henley course.
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The 2 Mile Great North Swim is a challenging event for swimmers aged 16 and over. Covering 3,200m—roughly 125 lengths of a standard 25m pool—this swim is perfect for those looking to test their endurance in open water. The average completion time is around 1 hour 15 minutes. With full support from lifeguards, kayakers, and safety boats, swimmers can enjoy the stunning Lake Windermere while feeling secure in the well-supported environment. A great choice for swimmers ready to take on a longer distance in a beautiful and safe setting.
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