Welcome to the forum and to the hobby of metal detecting. It's a lot of fun and can become quite addictive. I don't know of any canadian metal detecting magazines. However you should find all you need to know through forums and youtube video's . Most important thing is to follow the code of ethics, practice proper target recovery and HAVE FUN!!
Welcome to the forum! can't wait to see your finds this summer, me and marc are pretty hardcore detectorist and we are always out on the hunt, if ever you want to join us send us a message this spring, like marc said the most important part is following the code of ethics & practice proper target recovery and having fun,