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
2mph SW Wind Speed
5°C Outside Temperature
0 UV Rating
Clouds Local Forecast
Updated: 21:04 - 14 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 353.227km 122h 40m 100%
2 Andy Tester 350.7km 91h 25m 55s 100%
3 Ben Fearnside 252.663km 81h 39m 72%
4 Kent Reynolds 228.05km 87h 16m 65%
5 Bea Stiller 157.582km 49h 10m 28s 45%
6 Nicholas Petche 154.75km 65h 29m 36s 44%
7 James Longstaff 148.5km 44h 41m 36s 42%
8 Elís Mason 145.8km 50h 45m 58s 41%
9 Dawn Stepney 145.2km 49h 18m 41%
10 Jay Ransom 141km 50h 3m 40%