In Mexico City, A Technicolor Borough Serves Up Tasty Street Foods — On Water

Erica Abad glides down the ancient canals of Xochimilco, a borough of Mexico City, on her gondola-like boat. Her cousin, Efren Lopez, steers their boat — called a chalupa — by pushing against the canal floor with a long wooden pole, while Abad flips a sizzling quesadilla on a steel griddle fitted …