The Gaucho International Polo (www.gauchopolo.com) will take place on 21 March and will be a unique event which will bring an Argentine festival to London, uniting high-octane polo interspersed with the music of one of Latin America’s most acclaimed bands, Bajafondo, a tasting of the country's finest wines and a glamorous afterparty. Every day this week we will be offering readers the chance to win a pair of VIP tickets to the event and other exclusive prizes and we are delighted to introduce the Gaucho Polo mascot, Barnabus, the smallest polo pony in the world. We will be asking you the question “Where’s Barnabus?” every day and he will pop up in different iconic London locations. To get things started here he is at the home of The Gaucho International Polo, The O2 Arena, and the first clue is: Tomorrow Barnabus will be wheeling around London so Where’s Barnabus? To enter please let us know where you think he is via the Gaucho Polo Twitter site @GauchoPolo and get ready for the sightseeing trip of your life!