Well, cicada time is in full swing down here. In the early evening, when it's hot, humid and still sunny, they are at their loudest. You don't want to be out on the front porch for long. It's so loud your ears start to bother you. Going inside you feel a relief and a slight ringing in your ears. The sound rises and falls as they sing out in unison, creating a wave-of-sound effect. It's pretty impressive.
If you shake a tree or bush, hundreds will take off into the air. There can be several thousand in a tree. Looking out across the street, you can see them flying around, as you might see bugs over a lake when the light is right. I have to shake myself off getting into our car, as it is quite likely that one or more will land on me on the walk from my door.
In general though, most of them seem to be pretty sedentary, and they are quite clumsy flyers and crawlers.
I wouldn't want it every year, but I am glad to have seen it.