1. Get your passport, credit or debit card ready, and read the help document. Apply online for an eTA.In addition to your passport, you may need a travel authorization such as a visa or an Electronic Travel Authorization (eTA) to enter Canada. Submit your customs and immigration declaration online using Advance Declaration up to 72 hours before you arrive in Canada. Know which documents you need and where to get them to make your travel quick and easy. BLANK PASSPORT PAGES: One page required. TOURIST VISA REQUIRED: Not required for stays under 180 days. Know what documents a child needs to travel to or from the U.S. All children, including infants, must have their own travel documents. Global Medical Response or "GMR" is the leading integrated air and ground mobile patient care and EMS provider in the nation.