http://www.cic.gc.ca/english/helpcentre ... 044&top=16I am visiting the U.S. I want to come to Canada. Do I need an eTA?
It depends if you are from an eTA-required country and how you travel to Canada.
If you are from an eTA-required country and will travel to Canada by air, you will need an eTA.
If you are from an eTA-required country and will travel to Canada by land or sea, you will not need an eTA. However, carry proper identification to show to the border services officer when you enter Canada.