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
8mph NE Wind Speed
10°C Outside Temperature
0 UV Rating
Clear Local Forecast
Updated: 20:48 - 24 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 382.3km 99h 56m 49s 100%
2 Hildi Mitchell 381.827km 132h 19m 100%
3 Ben Fearnside 287.063km 92h 26m 82%
4 Kent Reynolds 253.374km 97h 40m 72%
5 Bea Stiller 184.082km 57h 25m 18s 52%
6 Nicholas Petche 179.9km 76h 5m 7s 51%
7 Elís Mason 171.503km 60h 38m 58s 49%
8 Dawn Stepney 165.325km 55h 48m 47%
9 Jay Ransom 155.5km 55h 15m 44%
10 James Longstaff 150.5km 45h 17m 41s 43%