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Winter Swim Challenge 2025

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Make this your winter of swimming with the Sea Lanes Winter Swim Challenge! 

Cold mornings, icy waters, and the drive to keep going when it matters most. The Winter Swim Challenge is here to help you stay motivated, push your endurance, and celebrate your achievements through the toughest months of the year. Log your swims online and unlock a set of digital badges designed by Vicky Woodgate with the option to purchase physical versions from Sea Lanes reception. 

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This year, we’re shining a spotlight on the incredible but endangered marine animals of the Arctic and Antarctic. Each distance represents the number of animals remaining, helping to raise awareness for their survival. The physical badges, available from Sea Lanes reception, help raise funds for Sussex Bay, which uses donations to restore marine, river, and intertidal ecosystems along the Sussex coast, protecting biodiversity and supporting sustainable communities. 

Choose your distance and swim! Complete one or all five challenges between December and February: 

  • Snowy Owl – 15KM (300 lengths)
    A light but spirited challenge to keep your winter swims soaring. 
  • Polar Bear – 25KM (500 lengths)
    Strong, steady, and built for cold water endurance. 
  • Orca – 50KM (1000 lengths)
    Fast, powerful, and ready to take on longer swims. 
  • Beluga Whale – 150KM (3000 lengths)
    A long-distance journey for swimmers who thrive on stamina. 
  • Emperor Penguin – 350KM+ (7000 lengths)
    The ultimate winter challenge, for the most resilient swimmers. 

Your swims can take place anywhere, pool or open water, as long as they’re tracked. But if you’re local, we’d love to see you at Sea Lanes Brighton.  

Leaderboard

Rank Swimmer Distance Time  
1 Andy Tester 188.75km 49h 7m 3s 53%
2 Hildi Mitchell 167.507km 58h 27m 47%
3 Ben Fearnside 123.268km 40h 11m 35%
4 Kent Reynolds 95.5km 39h 47m 27%
5 James Longstaff 90.2km 26h 38m 48s 25%
6 Nicholas Petche 87.3km 36h 29m 58s 24%
7 Jay Ransom 79km 27h 52m 22%
8 Dawn Stepney 70.4km 24h 20%
9 Wendy Kane 62.816km 24h 52m 17%
10 Stuart Klein 62.425km 20h 33m 59s 17%