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
19.3°C Water Temperature
12mph E Wind Speed
9°C Outside Temperature
0 UV Rating
Rain Local Forecast
Updated: 20:40 - 9 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 328.227km 114h 7m 93%
3 Ben Fearnside 242.263km 78h 32m 69%
4 Kent Reynolds 218.25km 83h 16m 62%
5 Bea Stiller 146.082km 45h 35m 18s 41%
6 James Longstaff 145.5km 43h 44m 6s 41%
7 Jay Ransom 137.5km 48h 48m 39%
8 Dawn Stepney 133.35km 45h 18m 38%
9 Nicholas Petche 133.15km 56h 17m 29s 38%
10 Elís Mason 131.39km 45h 48m 58s 37%