CASTLE TO COAST TRIATHLON

CASTLE TO COAST TRIATHLON is a point-to-point triathlon that takes athletes from Dorney Lake near Windsor to the Brighton seafront by swim, bike and run. The course begins with a calm lake swim, continues through rolling Surrey Hills on a long road bike segment and finishes with a challenging trail run across the South Downs into Brighton. The event is presented as a long-distance sportive for solo athletes and relay teams, and entries for 2026 are shown as open on the official site. Route details and past photo galleries are published on the event website to help athletes prepare.

The format places emphasis on participation and scenery rather than elite competition, with a supportive atmosphere and relaxed cut-offs described on the official pages. Practical operational details such as exact start times, transition locations, return transport options and full transfer arrangements are provided via the event route pages and athlete guide and should be checked before travel. Media galleries and downloadable route information are available from the organiser to inspect the course profile and prepare for the point-to-point logistics.