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
20.2°C Water Temperature
7mph SE Wind Speed
9°C Outside Temperature
0 UV Rating
Clouds Local Forecast
Updated: 16:54 - 7 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 347.2km 90h 27m 32s 99%
2 Hildi Mitchell 319.827km 111h 22m 91%
3 Ben Fearnside 241.368km 78h 8m 68%
4 Kent Reynolds 213.05km 81h 11m 60%
5 James Longstaff 144.5km 43h 25m 35s 41%
6 Bea Stiller 142.582km 44h 31m 46s 40%
7 Jay Ransom 137.5km 48h 48m 39%
8 Dawn Stepney 128.75km 43h 48m 36%
9 Elís Mason 125.39km 43h 45m 58s 35%
10 Nicholas Petche 124.5km 52h 29m 59s 35%