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
19.1°C Water Temperature
9mph N Wind Speed
6°C Outside Temperature
0 UV Rating
Clouds Local Forecast
Updated: 20:50 - 13 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 350.127km 121h 46m 100%
2 Andy Tester 348.2km 90h 44m 5s 99%
3 Ben Fearnside 252.663km 81h 39m 72%
4 Kent Reynolds 224.55km 86h 1m 64%
5 Bea Stiller 154.082km 48h 6m 16s 44%
6 Nicholas Petche 152.55km 64h 41m 6s 43%
7 James Longstaff 147.5km 44h 23m 36s 42%
8 Dawn Stepney 145.2km 49h 18m 41%
9 Elís Mason 142.19km 49h 30m 58s 40%
10 Jay Ransom 137.5km 48h 48m 39%