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The first part of the Eurostar Tri-City-Athlon will see competitors heading to north-east Paris to complete a 1.5km swim at Bassin de la Villette.
Triathlon Preview
Swim, cycle and run in three great European cities all in one day. James Cracknell looks ahead to Eurostar's pioneering Tri-City-Athlon.
In the second stage of the Eurostar Tri-City-Athlon competitors will take part in a 40km bike ride on the roads near the King Baudouin Stadium in Brussels.
Travelling by Eurostar
Christopher Lyles reflects on a seamless trip from the centre of London right to the heart of Paris - and the perfect weekend away.
The third and concluding stage of the Eurostar Tri-City-Athlon will see participants travelling to London to take part in a 10km run in Regent's Park.
Eurostar and London 2012
Nina Ferrier, Eurostar's Head of Sponsorship for London 2012, says the high-speed rail company will play an integral part in the Olympic Games.
How to enter
Upload your details for a chance to gain a place at the Eurostar Tri-City-Athlon.
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