yah, i would have to agree with the peps who say to ask someone in a restaurant or the like.. hang around a convenience store for a bit.. hang out and act like your checking out a magazine or whatever.. soon enough someone will roll in and purchase a blunt or wraps, and when they do, just kinda follow them out of the store and approach them.. it can be kinda sketchy, but sometimes you have to do what ever is necassary to get what you want in life..
i too have also traveled all throughout europe and canada, and have always managed to find what i was looking for.. i managed to hook up in spain although i don't even speak spanish, lol... but really.. just keep your eyes and nose open, and be wiling to approach a stranger, and good things can happen.. i've also done the old trick of wearing a shirt, like one from strainz clothing.. i have the ny diesel shirt, which is a good ice breaker, and the good thing about this method is that only fellow heads will know what's up, and are usually the only ones to approach you, rather than just wearing a shirt that says pothead or whatever which could also make some unwanteds to take notice.. good luck with the search though..