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
3mph SW Wind Speed
10°C Outside Temperature
0 UV Rating
Clouds Local Forecast
Updated: 16:08 - 11 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 348.2km 90h 44m 5s 99%
2 Hildi Mitchell 333.427km 115h 50m 95%
3 Ben Fearnside 252.663km 81h 39m 72%
4 Kent Reynolds 220.35km 84h 11m 62%
5 Bea Stiller 151.082km 47h 9m 39s 43%
6 Nicholas Petche 147.2km 62h 34m 4s 42%
7 James Longstaff 146.5km 44h 2m 36s 41%
8 Dawn Stepney 140.5km 47h 48m 40%
9 Jay Ransom 137.5km 48h 48m 39%
10 Elís Mason 136.49km 47h 34m 58s 38%