Aerial view taken with a drone of moored "trajineras" -traditional flat-bottomed river boat- at Xochimilco natural reserve in Mexico City on April 1, 2016. Xochimilco canals are one of the places most visited by local and foreign tourists, to go along the water, eat traditional food and enjoy Mariachi music. AFP PHOTO/ Mario VAZQUEZ / AFP / MARIO VAZQUEZ        (Photo credit should read MARIO VAZQUEZ/AFP/Getty Images)