Maps California State Automobile Association One of the best map sets if you are driving in Mexico is the Guia Roji - Por Las Carrateras de Mexico available in most bookstores and the Sanders chain in Mexico. The choice of airfares and schedules are up to you. A word of caution - return flight schedules may change, so check on your flight from Mexico at least a day before your scheduled departure . However, you must have evidence of Mexican insurance, and may need to leave a deposit at the border before passing through. Since the major roads accessing Maya sites are relatively good, a rental car is a good way to cover more territory at your own pace.
Rental rates are reasonable with unlimited mileage.
There are several toll highways running from Canc n to M rida and M rida to Campeche. Gasoline is approximately the same price as in the U.S., but gas stations are not as common. Keep an eye on your gas gauge. Although most gas station attendants are honest, be sure the pump is reset to zero before pumping starts. Gas is sold by the liter, and a small tip is appreciated by the attendant.