The Old Harry Swim Challenge
20 September 2025 | Back up 21 September 2025
Discover stunning vistas both above and below the water's surface, all while championing conservation in this iconic race.
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Navigate over sea grass forests and a sanctuary for seahorses, culminating in the renowned chalk stacks.
Opt for the 2.5km challenge swimming off the beach towards Old Harry Rocks, where you'll be picked up by powerboat and brought back to shore.
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Our commitment to a light ecological footprint means a single registration tent, one convenient bag drop, no onsite sales, and minimal buoy placements—preserving the delicate seagrass ecosystem.
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Join us in supporting The National Trust's ongoing efforts at this exceptional location. Embrace the adventure while making a positive impact!
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Knoll Beach, Studland, Dorset BH19 3AH | 20 September 2025 (back up 21/09/25)
The 5km Old Harry Swim Challenge
Swim in one wave from Knoll Beach to Old Harry Rocks and back in this unique race.
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Wetsuits optional | In water start | Chip timed
Receive a t-shirt and swim cap upon completion.
3 hour cut off | 20 September 2025 | Back up 21/09/2025 | Time 12:00
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£74.00
Use EARLY10 for discounts
The 2.5km Old Harry Swim Challenge
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You'll swim from the beach, out to Old Harry Rocks, you'll be picked dup by powerboat and taken back to shore. Exhilarating!
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Wetsuits optional | In water start | Chip timed
Receive a t-shirt and swim cap upon completion.
2 hour cut off | Tidal assisted | 20 September 2025 | Back up 21 September 2025 | Waves between 12:00 -15:00
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£74.00
Use EARLY 10 for discounts
