Watch the Triathlonguard Long Course Weekend on Channel 4
Saturday 19th August at 06.45 and Ch4+1 at 07.45
The Pembrokeshire Coastal National Park hosts this swim, bike, run event which is made up of three races in three days – the Wales Swim, the Wales Sportive and the Wales Marathon. With each discipline taking place as a separate stage, by the time competitors finish the marathon in the historic coastal resort of Tenby they will have completed an iron-distance triathlon.
With thousands taking part, there is legendary crowd support and strong individual competition in each stage, as well as the ultimate prize of being fastest across all three.
Are we in a triathlon boom, or hurtling towards burnout? Laura Siddall on the growth of the sport
