"Travel to the US after July 01, 2009" Top 5 Page for this destination Niagara Falls Warnings Or Dangers Tip by kris-t

if you travel to the United States by land or water, you must present one of the following valid documents as part of the U.S. Western Hemisphere
Travel Initiative (WHTI) requirements:
a valid passport
a nexus card or centri card

a Free and Secure Trade (FAST) card: or an enhanced driver's licence/enhanced identification card (from a province or territory where available).

Canadian citizens flying to, through or from the U.S. must still present a valid passport. This requirement applies to all travellers, regardless of age!

Travelers from Europe:

European passport holders do not require a visa to visit Niagara Falls Canada. All you need is a valid passport, a return ticket and sufficient funds to support yourself and your dependents during your stay in Niagara Falls Canada.

European visitors to Niagara Falls Canada who wish to also visit Niagara Falls United States must possess valid passports to be admitted; residents of Portugal are further required to have a visa.

Website: http://www.cbsa.gc.ca