Today this area, once on the edge of Mexico City , has been engulfed by that gigantic metropolis. There are miles of these canals of which only 14 km (8.7 mi), lined with farm homes and trees, dominated by the thujone, are navigable. The Gardens, besides still producing flowers, fruits and vegetables, have become a favourite spot where both locals and tourists come for a few hours to relax in the canals and enjoy their market culture.