3 Great Mexican Destinations Close to the BorderLooking for a quick excursion over the border? Check out these great Mexican destinations that are just a quick passport check awat—followed by a drive, train ride, boat trip, or river walk.Boquillas del Carmen, CoahuilaCredit: VallarieE/iStockSet on a bend of the Rio Grande with the Sierra del Carmen mountains rising up in the distance is Boquillas del Carmen. If you want an authentic Mexican experience across the border from Texas, then this could be it. Boquillas is a great place to visit on a day trip from vacations in Big...