Xochimilco is unique in the world. When the mist rises in the morning over the canals, you can make out the silhouettes of canoes and farmers working the land, sowing and harvesting in the chinampas. You can also hear the birds singing, the quacking of ducks and herons, and the splashing of oars submerging in the water. This district, located southeast of the city, is of invaluable worth for its historical, agricultural, ecological and cultural importance, which is why it is a World Heritage Site since 1987, and its chinampas, an agricultural remnant of the pre-Hispanic past, in which all kinds of vegetables are grown. But, Xochimilco is also a place for fun and recreation. There are places to ride bicycles, paddle boats or kayaks, watch the large number of birds that nest everywhere and tour its canals flanked by ahuejotes, trees endemic to the area, aboard a colorful and festive trajinera.