回複：關於去美墨旅遊證件問題

Thinking take a vacation, either DRIVE to Toronto, Cananda, or FLY to Cancun, Mexico.  Questions:

1. I have Green Card, do I still need visa to visit either place?
-No.

2. My wife is US citizen, does she still need visa to visit either place
-No.

3. 2-yr or younger kids, born in US.  Do they need passports or birth cirtificate is good enough?
-Yes.

4. Parents from China, with US B-2 visa.  I assume they need visa from Canada or Mexico in order to cross the border?  anyone can confirm?
-They need Canada visa to enter Canada, not need Mexico visa to enter Mexico. If they will return to US within 30 days, they also do not need a US visa to reenter US.