If you are traveling abroad, you need to bring proper travel documents such as a passport, travel visa, ETA, or ESTA. If you don't have the proper documents, you will denied entry to the country. Please make sure your travel documents are get in order before your departure.
A transit visa may be required depending upon the contry. Please refer to the relevant embassy or consulate of all the countries on your itinerary as well as your destination country for the most up-to-date information.
A passport is a government-issued ID in the form of a passbook (valid for all international travel).
A travel visa grants travelers the right to enter and depart a specific country. You may need a visa for each individual port or connection on your itinerary, so check in advance.
ESTA (Electronic System for Travel Authorization) is a required document for non-citizens to enter the US, unless you have a green card.
ETA (Electronic Travel Authority) is a required document for non-citizens to travel to Australia and for visa-exempt non-citizens to travel to Canada. After approval it is associated with your passport, so you do not need to carry extra documentation. You can find applications and details at Australia Electronic Travel Authority or Canada Electronic Travel Authorization.
-Traveling with minors
Children under 18 traveling without both parents may need to provide notarized documentation and letters of permission. Travellers/Parents should confirm with the embassy or consulate of the country to which they are traveling.