The only time a NVFR flight would be operating lower than 3000ft AMSL or 1000ft AGL would be in accordance with subregulation 91.277(3) of CASR - taking off or landing or within the NVFR circling area of an aerodrome (within 3NM).
Is that true?
Are there
no circumstances in which it is 'legal' to
cruise at 2,500' AMSL NVFR? If, for example, LSALT for A to B is 1,500' AMSL and forecast and actual cloud base is 5,000', what rule says you can't cruise A to B at 2,500' AMSL NVFR (provided, of course, that you operate in sight of the ground or water)?