A Berry Good Time--South Florida's farming region has been steadily shrinking in the face of industrial expansion, but you'll still find several spots where you can get back to nature while indulging in a local gastronomic delight -- picking your own produce at the "U-Pic-'Em" farms that dot South Dade's landscape. Depending on what's in season, you can get everything from fresh herbs and vegetables to a mélange of citrus fruits and berries. During berry season -- January through April -- it's not uncommon to see hardy pickers leaving the groves with hands and faces that are stained a tale-telling crimson and garnished with happy smiles. On your way through South Dade, keep an eye out for the bright red U-PIC signs.