Buenos Aires, the cultural highlight on many trips to South America, is changing like never before. Every week new boutique hotels, restaurants, secret bars, art galleries and designer shops open in a blur of champagne and cocktails. The terraces of football stadiums heave with passionate fanatics of world-class teams such as Boca Juniors, while in the dimly lit halls of the city's old quarter, couples, in sensual embrace, dance the tango. Visitors to this city can participate in every aspect of Buenos Aires. It is a thrilling place, full of the unexpected, and occasionally bewildering. And over the last eight years, ''Time Out Buenos Aires'' has become a favourite for visitors looking for the most up-to-date information, the latest cultural trends and insightful investigations written by journalists who live this city everyday.