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
19.4°C Water Temperature
4mph NE Wind Speed
6°C Outside Temperature
0 UV Rating
Clear Local Forecast
Updated: 21:02 - 17 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 358km 93h 21m 49s 100%
2 Hildi Mitchell 353.227km 122h 40m 100%
3 Ben Fearnside 268.163km 86h 33m 76%
4 Kent Reynolds 233.55km 89h 50m 66%
5 Nicholas Petche 167.2km 70h 55m 49s 47%
6 Bea Stiller 165.582km 51h 37m 51s 47%
7 Elís Mason 155.5km 54h 7m 58s 44%
8 Dawn Stepney 153.3km 51h 48m 43%
9 James Longstaff 148.5km 44h 41m 36s 42%
10 Jay Ransom 148km 52h 34m 42%