I have a Canadian visitor visa and would like to go to Canada for a short term certificate program in Ontario, in order to add credentials to my work experience. However, when I applied for my visitor visa, I did not have any such plans at that time, and hence did not mention it on the application for the visa. I have friends in the city as well and figure this would be a good experience for me. If I do go, will I be asked at immigration why the reason was not stated on the app? Am I allowed to do so, and are there any other risks/concerns I should be aware of? Also, is it normal to go for a certificate program which is only part time study? Will I be required to show proof of funds for my stay, apart from the enrollment confirmation which I will have already received, since I have paid for my classes?