Hello. I am a Canadian citizen and I'm currently living in Canada and my girlfriend is a Belgium citizen currently living in Belgium. We are planning to get married in Belgium and do the legal process there, which I believe will be recognized and legal here in Canada. After marriage, does my wife need to apply for a visitors visa in Belgium or can it be done at the border in Canada? Does she need to apply for a visitors visa even if we are married? Or is it already a given via her passport? What is the amount of time you can stay on a visitors visa? How long does it take to process a visitors visa? To process an extension on a visitors visa?
She needs an ETA. She must apply for it in advance of traveling to Canada. How long a visitor is allowed into Canada is up to the CBSA officer they encounter at the border - generally speaking, people are given six months.