Exchange money at a U.S. or Canadian bank for the best rate of exchange. The rate fluctuates daily and not all businesses give the full value.
Many visitors exchange a small amount of cash and charge larger purchases.
Visitors to Canada do not need passports or visas, but you will need to prove that you are a citizen or resident of the United States. Proper identification includes passports, certificates of naturalization or citizenship, birth certificates with photo identification or voter registration cards. Permanent residents of the United States who are not citizens should carry resident alien cards. The same rules apply when you return to the United States. Be sure to carry similar identification for all children.