To visit Mexico, you must have a valid American visa, and not just a transit visa, but after the expiration of the visa, you may be arrested and temporarily put in the "monkey" until the nearest flight home. Although it is difficult to predict the actions of the Mexican authorities, they did not encounter such cases. It is easier to formalize the Mexican "electronic visa" and not to think about the consequences of a long stay in the country. Electronic visa permission, allows you to stay in Mexico for 180 days.

Indeed, there is such a rule when tourists having active (all categories ) a United States visa is not required to obtain an electronic permit or consular visa for visiting Mexico . However, if a tourist travels on a US visa and the dates of the trip to Mexico do not coincide with the validity of the US visa, I would recommend opening an electronic visa in Mexico, the clearance will take several meters this visa is valid for a month from the moment of opening, but in any case, under this visa in Mexico, you can not more than 30 days from the opening of the visa, so if you are planning a long stay (but not more than 30 days), I advise you not to do it earlier than 2-3 days before departure .

In case tourists want to stay in Mexico for a tourist visa for a period of more than 30 days, you can recommend the opening of a consular visa, which is issued 3 working days, but is in the country can be annually not more than 180 days. The term of this visa is 10 years from the moment of opening.