Kind of a funny place to ask that Q meade kampe, but it sounds like you're already facing them fine. However,.........
?You have a 3 hive beeyard and they 'both' face South??? confused me a bit :-\
Most beeks say facing the entrance South to Southeast is best, but I'm not convinced of any particular direction, except; Out of prevailing winds in YOUR area,,,,,,, but I came here for hints on how to post pics of my bee yard, so now you owe us ;) a picture, that is :-D.