Sat 22 Jul 2023 Windsor, Buckinghamshire, UK

Castle to Coast Triathlon

An Epic Point To Point Adventure

  • Sat 22 Jul 2023
Dorney Lake, Windsor

Castle to Coast Triathlon



All ages on 31 Dec 2023

  • 1.2 miles lake swimming
  • 66 miles road cycling
  • 14 miles trail running


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.

Event details

  • All fitness levels
  • Event village
  • Newcomers


  • Free parking


  • Food stations

What's included

  • Medal
  • T-shirt


  • All ages on 31 Dec 2023
  • Entries open
  • Enter online
Enter now