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°C Water Temperature
5mph SW Wind Speed
8°C Outside Temperature
0 UV Rating
Clear Local Forecast
Updated: 20:47 - 16 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 352.2km 91h 51m 58s 100%
3 Ben Fearnside 262.663km 84h 45m 75%
4 Kent Reynolds 231.45km 88h 55m 66%
5 Bea Stiller 161.582km 50h 24m 19s 46%
6 Nicholas Petche 157.15km 66h 29m 17s 44%
7 Elís Mason 153km 53h 13m 58s 43%
8 James Longstaff 148.5km 44h 41m 36s 42%
9 Dawn Stepney 148.3km 50h 18m 42%
10 Jay Ransom 148km 52h 34m 42%