Useful Guide in Submitting an application for a Canada ETA
https://medium.com/@r5nmlhx765/helpful-guide-in-making-an-application-for-a-canada-eta-9225a7dc8fc8
For people going to visit Canada, they may have to apply for the Canada eta. The ETA is a requirement if you are traveling by air to the country. Also known as Electronic Travel Authorization, this prerequisite