Under the towering skyscrapers of Brazil's largest city, Sao Paulo, locals take to the sand to take beach tennis lessons, a new craze in the metropolis which has no real beaches. "It's a special type of sand and it's expensive but it is paying off; all the clubs are full," says Fabio Costa, who owns one of the city's many beach tennis clubs. The sport has exploded in recent years in Sao Paulo, as locals take a break in the sand from the daily grind. IMAGES AND SOUNDBITES