Sea Lanes Brighton

The National Open Water Swimming Centre®

A stepping stone to the sea, creating a happier, healthier community with swimming, seaside views, and delicious food and drinks.

About Sea Lanes
19.2°C Water Temperature
1mph S Wind Speed
11°C Outside Temperature
0 UV Rating
Clouds Local Forecast
Updated: 21:05 - 26 February, 2026

Swimming

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Food + Drink

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Hire

Our flexible spaces are perfect for parties, presentations, workshops and meetings, designed to fit your needs seamlessly.

Coaching

There is something for all adults with the coaching courses and sessions available at Sea Lanes. Find the course for you today.

Our Community

Check out the various local fitness, health and wellbeing, food, and beverage businesses Sea Lanes is also home to

WINTER SWIM CHALLENGE 2025

Open to all and free to enter. Complete one or all the five challenges between 1 November 2025 and 28 February 2026.

This year’s challenge highlights endangered Arctic and Antarctic marine animals, with each swim distance representing their remaining numbers to raise awareness. Complete the challenge, purchase your swim badge and raise money to support Sussex Bay’s work to restore local ecosystems and protect biodiversity.

Snowy Owl – 15KM (300 lengths)
Polar Bear – 25KM (500 lengths)
Orca – 50KM (1000 lengths)
Beluga Whale – 150KM (3000 lengths)
Emperor Penguin – 350KM+ (7000 lengths)

Join the challenge. 

Rank Swimmmer Distance Time Progress
1 Hildi Mitchell 387.277km 134h 17m 100%
2 Andy Tester 382.3km 99h 56m 49s 100%
3 Ben Fearnside 287.063km 92h 26m 82%
4 Kent Reynolds 257.674km 99h 20m 73%
5 Bea Stiller 188.082km 58h 42m 45s 53%
6 Nicholas Petche 182.5km 77h 6m 27s 52%
7 Elís Mason 175.503km 61h 59m 58s 50%
8 Dawn Stepney 173.6km 58h 28m 49%
9 Jay Ransom 159km 56h 32m 45%
10 James Longstaff 152.5km 45h 54m 13s 43%