If you are planning your trip to Canada or any other overseas location, then you are probably more occupied with planning your activities and hotels than thinking about your travel insurance. Chances are that you will not need to have international travel medical insurance, but if something does go wrong the small investment in your health can save you a lot of problems.
It is a no brainier to take out the insurance, but you might find it confusing knowing which company to go with. In order to choose insurance that is right for you, you will need to do some research. There are some existing policies that you may have that include travel insurance and some credit card companies also have this service.
When you have worked out the current level of coverage that you have, you will have to start looking at the different travel insurance options that are out there and start comparing what they have to offer.