In 1932, the United States and Canada established the International Peace Garden, located between the ports of Boissevain, Manitoba and Dunseith, North Dakota, in an effort to symbolize the peace between the two countries. U.S. residents that enter the garden do not need to present any form of WHTI-approved travel documentation if they can prove they entered the garden without it. However, the U.S. Customs and Border Protection Agency recommends presenting WHTI documentation anyway to speed up the border-crossing process.
To cross the North Dakota/Canadian border, you must be in possession of a valid U.S. passport or passport card. The difference between the two is the size, usage and cost. Passport books are more expensive than passport cards but can be used for international travel by all access points: sea, land and air. Passport cards are less expensive and much smaller but cannot be used for air travel. Passport cards are available for use only at sea and land ports between the U.S., Canada, Mexico, Bermuda and the Caribbean Islands.
Citizens that frequently cross the U.S. border into Canada and Mexico are pre-approved for the Trusted Traveler Program. This program provides specific traffic lanes for program card holders that speed up the border crossing process for frequent travelers. Initially, the NEXUS card was introduced for travelers that frequently cross the U.S./Canada border and the SENTRI card for crossing the U.S./Mexican border. As of 2010, SENTRI and NEXUS cards are both accepted at any U.S./Canadian and U.S./Mexican border.
