Niagara Falls- Necessary documentation for Canada

Question

What kind of documentation do I need to enter Canada in order to see that side of Niagara Falls? All I have is a US Residency Card. Do I need a re-entry permit also?

Answer 1

You need simply proof of citizenship by way of birth certificate or any other means and some form of photo ID. As of right now that's all you need in June of 2009 a passport will be needed.