The swim consists of 16 lengths (400m) in the pool at Horwich Leisure Centre in Bolton. Triathletes will be seeded according to their estimated swim time, with the slowest swimmers setting off first. The event has waves of four swimmers starting together.
There will be a gap of 4 minutes between each wave meaning that there should be no more than 3 other swimmers in your lane at any one time. Each swimmer will be required to wear a specially designed 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.