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
19.8°C Water Temperature
7mph SW Wind Speed
10°C Outside Temperature
0 UV Rating
Clouds Local Forecast
Updated: 20:39 - 21 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 Andy Tester 368.2km 95h 59m 33s 100%
2 Hildi Mitchell 355.727km 123h 30m 100%
3 Ben Fearnside 276.063km 89h 9m 78%
4 Kent Reynolds 244.475km 94h 20m 69%
5 Bea Stiller 175.582km 54h 44m 30s 50%
6 Nicholas Petche 174.9km 74h 2m 39s 49%
7 Elís Mason 168.503km 59h 37m 58s 48%
8 Dawn Stepney 161km 54h 28m 46%
9 Jay Ransom 155.5km 55h 15m 44%
10 James Longstaff 150.5km 45h 17m 41s 43%