Check your local hydro shops, givem a call. My local hydro shop was the only place that had them.....although the owner was on the cover of High Times, so it is a bit of a "growers" hydro shop
Im further down. Just past Surrey. But if your going to Vancouver I really dont think you will have a problem finding a 30x microscope. I would look up some Van hydro shops. Call around. Maybe a Radioshack if they have one in Van.
...Or just any of the random electronics stores in vancouver, also check out Jewlery retailers, places like that.
Its a pretty standard tool at Hydro shops that are owned by potheads though.