Camilla, Duchess of Cornwall has unveiled what what will be the venue for Equestrian and Modern Pentathlon events in the London 2012 Olympic Games in Greenwich. The Duchess toured the Park, viewing the areas which will be used for the Cross-country, Dressage and Show Jumping events.While she was there she presented the Equestrian Olympic Athlete of the Year trophy to her neice Zara Phillips, daughter of Princess Anne, The Princess Royal.