no boarder control --> to MEX

boarder crossing is so easy, that is, one-way only to the South. if you're driving (or bus) into boarder places like Baja, it's open road, nobody will stop you, just make sure you have legel docs so that you will come back to U.S. and do expect long hours at U.S entry port. that's our experience. But if you're taking flight into MEX, then VISA is required for passport holders of certain countries.