I made an enquiry of the Radio Amateurs of Canada a few weeks ago about recipracal license agreements. Some countries require you to apply for a license for the duration of your stay, and this can be quite expensive. In this case the reply was most welcome news.

If you have a CEPT on your licence, you can operate without further ado in
Canada. You should also consult the Standards for the Operation of Radio
Stations at
http://strategis.ic.gc.ca/epic/internet/insmt-gst.nsf/en/sf05478e.html

720 Belfast Road
Suite 217
Ottawa, ON K1G 0Z5

Cheers Guy. As Ireland is a participant in CEPT I can just bring along my own license documentation.