The swim consists of 16 lengths (400m) in the pool at Turton. Triathletes will be seeded according to their estimated swim time, with the slowest swimmers setting off first. The event has waves of swimmers starting together.

Each swimmer will be required to wear a swim cap (this must be taken off and handed back on completion of your 16 lengths). Volunteers will count the number of lengths and indicate when the 400m has been completed.