In canada you may register your boat with the Federal Government, or
with the province you live in.

Registration with the Federal government is the equivalent to a Coast
Guard Registration in the U.S. It is proof of ownership. For your size
boat you will have to have its tonnage certified. Aside from that the
charges are reasonable. This hasn't nothing to do with the taxes.

A provincial registration is for purposes of using this boat in
Canadian waters as a Canadian, and is mostly about paying GST and PST.
I don't know what the handling is for someone coming to Canada.

If you plan to sail in Canada, you should know where you are going in
this country. Aside from the Atlantice Provinces and British Columbia,
that boat is way too big for the country. I live in Ontario, and even
on Lake Ontario, where draft isn't an issue, there are few boats over
35 feets. I've sailed across lake Ontario on a 20' boat.

Ed