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
20.5°C Water Temperature
2mph E Wind Speed
8°C Outside Temperature
0 UV Rating
Clouds Local Forecast
Updated: 22:59 - 3 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 333.8km 86h 56m 35s 95%
2 Hildi Mitchell 311.827km 108h 37m 89%
3 Ben Fearnside 230.443km 74h 49m 65%
4 Kent Reynolds 203.05km 77h 11m 58%
5 James Longstaff 141.5km 42h 28m 48s 40%
6 Jay Ransom 137.5km 48h 48m 39%
7 Bea Stiller 136.082km 42h 29m 38s 38%
8 Dawn Stepney 121.55km 41h 23m 34%
9 Elís Mason 117.29km 40h 57m 21s 33%
10 Nicholas Petche 116.5km 48h 56m 33s 33%