One thing to be remembered is if you have to enter Mexico, you need the following documents in hand; otherwise you cannot enter Mexico City. The most important document is photo ID which can be either a passport or a driver’s license. You should have a valid proof of citizenship, and a tourist card. A tourist card is a document issued by the Mexican government to visit Mexico. You should careful so as not to lose it because you may be stranded there. If students require visa, you can contact the Mexican consulate in your area and get them. So those planning to Mexico have a good time and enjoy yourselves thoroughly.