Depending on your nationality, you may need visas to enter certain countries included in your trip. You are responsible for obtaining all necessary visas prior to the departure of your trip. Consult a visa service well in advance to determine which visas you will require and how to obtain them.
Important: visas can take up to six weeks to obtain and a fee is normally charged. Failure to obtain all necessary visas could cause you to miss part of your trip and will result in considerable expense and inconvenience. You should also double check with the individual Embassies before you depart, remembering that visa requirements can change at short notice.
For most of the countries where visas are required, it is NOT possible to obtain the visa whilst on the trip and some visas take 3-4 weeks to obtain.
For Latin American trips tour operators require full passport details including name, place of issue, nationality, passport number and the expiration date (which needs 6 months validity at time of travel) to confirm the reservation
For trips going to Russia, you will need invitation letters that you MUST have to obtain your visa. For this reason, it is essential that you provide your passport details as soon as you book.