The passport should have a minimum validity of 6 months, and it is obligatory the Visa, you can process it in the Consulates or through your travel agency.

The Visa for the tourist has a maximum duration of 30 days. In case you make use of private houses for rent you will have to use tourist's Visa; in the control of Customs, you should declare where you will lodge, indicating the name and address of the house that you have contacted. Those that use their Cuban relatives' houses will have to communicate it when they request the visa in the Consulate. This second Visa type (type A-2) is given in the moment, and you should credit the relationship by means of a family book, if your spouse is Cuban, or his passport. The Visa can acquire it with a maximum advance of 60 days to the date in which you will begin the trip.

To prolong the stay for one month more, one week before the expiration of the visa, you should get the postponement of the return flight, to take the payment receipt, if you stay in the house in matter, or guest's card if you lodge in a hotel, passport, Visa and airplane note with new date, as well as the corresponding stamps, and you should present yourself in the Office of Immigration and Alienship to the place where you are.

For the case that you will remain at home of a friend, Cuban, to the one you don't pay for the lease, you owe present yourself to carry out the errands in the office of Control of Foreigner with this person, provided of the Writing of Property of the housing and the corresponding stamps.
To carry out some activity that is not the healthy recreation and the leisure, you will need a specific Visa. In this case are the students, workers and managers that work or study in the Island, and that, therefore, they require of visas for more time.