VFR OTT (Over The Top) is allowed in Canada. It's just an extra rating that
can be added on to the PPL with 15 hours instrument time. It can only be
used if you are able to climb to altitude and descend at destination whilst
maintaining VFR.

Thanks for the clarification, didn't know that ! (I remember reading
somewhere while back it wasn't allowed, it must have been a VFR-only
pilot). So how about VFR ON-Top (the IFR clearance), is that a valid
procedure in Canada ?