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°C Water Temperature
8mph E Wind Speed
9°C Outside Temperature
0 UV Rating
Rain Local Forecast
Updated: 20:35 - 5 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 315.427km 109h 55m 90%
3 Ben Fearnside 237.768km 77h 3m 67%
4 Kent Reynolds 207.85km 78h 56m 59%
5 James Longstaff 141.5km 42h 28m 48s 40%
6 Bea Stiller 139.082km 43h 25m 48s 39%
7 Jay Ransom 137.5km 48h 48m 39%
8 Dawn Stepney 125.65km 42h 48m 35%
9 Nicholas Petche 124.5km 52h 29m 59s 35%
10 Elís Mason 121.29km 42h 19m 58s 34%