Have you tried contacting the Model Airplane Association of Canada (MAAC) <
http://www.maac.ca/>, to be put in touch with a local club?
The Cub is not what I'd advise using for a basic trainer. Is that the problem?
Lots of people fly floatplanes off of snow in winter. I'd imagine the Cub is easier to handle on takeoff with floats than with wheels.
Cheers,
CR