Ciudad Morelos is also know as "Cuervos". Head south of Mexicali, looking for the road that will take you to San Luis. You will drive on this road and you'll see that you pass 2 overpasses, after the second overpass in Bataques the road will give you the option to continue to San Luis or Benito Juarez, Tecolotes, Paredones, Ciudad Morelos and Algodones. Take a look at the map to help guide you.

http://baja-web.com/mexicali/mxl-val-map.htm

Last time I went to Benito Juarez, it took about 1 hour from the city's civic center. Getting out of the city takes long, after that, when you are on the highway it's an easy drive, now that the road is 4 lanes.

good luck!!

Monica.