Then, turning about the corner of a wall-like outcropping of granite, we came upon a smooth area of two or three acres before the base of the towering pile of ice and rock that had baffled us for days, and before us beheld the dark and cavernous mouth of a cave.
Canada, Mexico Borders to Be Affected by 2008. Millions of Americans will be required to show passports when they reenter the United States from Canada, Mexico and the Caribbean by 2008 under new rules announced yesterday by the State and Homeland Security departments.
Canada Travel Requirements. 1  Canada travel requirements for entry are different from the requirements to re-enter the United States. 2  U.S. citizens who travel to Canada must present a valid passport to re-enter the United States by air or a passport, passport card or other approved WHTI and WHTI-compliant document when entering by land or sea. A Nexus card is also enough to gain entrance to Canada by land, sea and air.