DATE FOR 2025 NOW CONFIRMED

19th July 2025

CASTLE TO COAST TRIATHLON

AN EPIC POINT TO POINT ADVENTURE

Castle to Coast takes athletes on a stunning adventure all the way from Dorney Lake near Windsor to Brighton Sea Front by Swim, Bike & Run.
This challenging course starts with a calm lake swim, before travelling through the rolling Surrey Hills and onto a challenging trail run across the South Downs all the way to Brighton sea front.
This is a course designed to be experienced and enjoyed, alongside friends and club mates. With relaxed cut offs and a fantastic supportive atmosphere thanks to its sportive nature this event brings something special to the sport that you won’t regret taking part in, be this your first or hundredth triathlon.

DORNEY LAKE, WINDSOR

1.2 MILE SWIM

WINDSOR TO HASSOCKS

c. 67 MILES BIKE

HASSOCKS TO BRIGHTON

c. 14 MILES RUN

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