Take a group of friends, head to the furthest southern reaches of the city, and rent a Trajinera in Xochimilco. A relaxing day can be spent floating down these ancient canals - exposing what is left of the great lake that covered most of day Mexico City. Bring an intimate picnic lunch with you or be prepared to party hard. Enjoy the many options for food, drink, shopping or entertainment, as smaller barges pull alongside, offering everything from beer, home cooked meals cooked on the spot or even full Mariachi bands.