1. Determine Eligibility: Before applying, ensure you are eligible for a Canadian tourist visa. Eligibility criteria may include having a valid passport, demonstrating sufficient funds to cover your expenses in Canada, having a clean criminal record, and providing evidence of ties to your home country that will compel you to return after your visit.
2. Gather Required Documents: Collect the necessary documents, which may include:
   • Passport with a validity date at least six months beyond your planned departure from Canada.
   • Completed Visitor Visa (IMM 5257) and Family Information (IMM 5707) forms.
   • Passport-sized photographs meeting specific requirements.
   • Proof of funds to cover your trip expenses.
   • Travel itinerary.
   • Invitation letter (if applicable).
   • Any additional documents requested by the Canadian consulate or embassy in your country.
3. Complete the Online Application: Visit the official website of the Government of Canada for immigration and citizenship. Create an account, fill out the online application form, and pay the processing fee.
4. Biometrics Appointment (if required): Depending on your nationality, you may need to provide biometrics (fingerprints and a photograph) at a local application support center.
5. Attend an Interview (if required): Some applicants may be required to attend an interview at a Canadian embassy, consulate, or visa application center.
6. Wait for Processing: The processing time for a Canadian tourist visa application varies by country and can take several weeks. It’s advisable to apply well in advance of your planned travel date.
7. Receive the Visa: If your application is approved, you will receive a visitor visa stamp or a Temporary Resident Visa (TRV) in your passport. This visa will specify the duration of your allowed stay and the number of entries permitted.
8. Comply with Visa Conditions: Ensure you follow the conditions of your visa, including leaving Canada before it expires.
9. Apply for an Extension (if needed): If you wish to extend your stay in Canada, you must apply for an extension well before your current visa expires.
10. Maintain Strong Ties to Your Home Country: Demonstrating strong ties to your home country, such as employment, property ownership, or family connections, can improve your chances of obtaining a multiple-entry visa.

Please note that immigration policies and procedures can change over time. I recommend checking the official website of the Government of Canada or contacting the nearest Canadian embassy or consulate for the most up-to-date information and guidance on obtaining a Canadian tourist visa.