Answer:
When answering the question about the main purpose of your visit on a Canadian visa application, you should provide a clear and concise response that accurately reflects your intentions. In this case, since you are applying to join a conference, your answer could be:
"The main purpose of my visit is to attend and participate in [Conference Name], which is scheduled to take place in [City], Canada. This conference is focused on [briefly describe the theme or topic of the conference]. As an attendee, I aim to gain valuable insights, exchange knowledge with industry experts, and contribute to the discussions and sessions. This visit is solely for professional and educational purposes, and I do not intend to engage in any activities that are outside the scope of the conference."
Remember to tailor your response based on the specific details of the conference and your personal circumstances. It's important to provide honest and accurate information that aligns with the purpose of your visit.