They still have the same passports as the rest of us. Our Canada includes Quebecois secessionists as well as Albertan secessionists. Albertan secessionists date back to the 1970s oil crisis. The premier of Alberta (Lougheed) said to our then prime minister (P. E. Trudeau) regarding the high oil prices suffered in Eastern Canada, "Let them freeze in the dark." But someone was copying from someone, because apparently Texans said the same thing about New Yorkers: Everyone wants to secede from somewhere."Let the bastards freeze in the dark” (or “Let the Yankee bastards freeze in the dark” or “Let them freeze in the dark") and “Drive 80 mph and freeze a Yankee” (or “Drive 90 mph and freeze a Yankee” or “Drive fast and freeze a Yankee") were bumper stickers that were popular in Texas during the 1973-74 energy crisis.
Key West seceded from Florida on April 23rd, 1982. So technically I'm not really visiting the US.
The citizens of Michigan's upper peninsula, or Yoopers as we call them, often talk of seceding from Michigan. They have next to no economy though so I don't really see it being viable. I spoke to a woman from Quebec today about this and she said that Quebec is one of the richest provinces in Canada due to energy etc and that they'd do just fine financially. She said they don't really celebrate Canada Day in Montreal, where she is from.