Castle to Coast Triathlon

JUL
24
2027
Point to point sportive triathlon from Dorney Lake near Windsor to Brighton sea front with a lake swim, long road bike and trail run across the South Downs.
Sat 24 Jul 2027
Middle distance 1.2 67 14 mi

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Castle to Coast Triathlon

Castle to Coast is a point to point sportive triathlon scheduled for 24 July 2027. The event runs from Dorney Lake near Windsor to Brighton sea front and combines lake swimming, road cycling and trail running.

The course begins with a calm lake swim at Dorney Lake, continues by bike through the rolling Surrey Hills toward Hassocks, and finishes with a trail run across the South Downs to Brighton sea front. Distances listed for the route are:

  • 1.2 mile swim at Dorney Lake
  • c. 67 miles bike from Windsor to Hassocks
  • c. 14 miles run from Hassocks to Brighton sea front

The event is organised in a sportive format with relaxed cut offs and an emphasis on a supportive atmosphere. It is presented for participation alongside friends and club mates and uses a point to point route that moves between distinct locations rather than laps. Visit the organization's website for the most recent information.

82 mi
Full Course
14 mi
Run
Swim
Bike
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