Particles around an area

So I am currently trying to figure out how I can use world guard regions max and min points to get particles to float around them. I am creating a point control plugin and I would to implement a clean visual,that does not block players movements, to show the Perimeter of the point capture. I know the code may not be all that simple but if someone could point me in the right direction. I am not that new at coding so you do not have to give me all the code or any (not yet). Just need a helping hand.