2-7 lights that hovered, changed directions many times, multiplied, unfathomably fast

At 10pm my wife, son, and I headed to the beach from our campsite that we just set up. We wanted to sit on the beach, check out the stars and go for a walk up the shore. After our walk, we sat down and noticed two lights that we thought were planes, that were a bit too close together foughly a mile or two over Lake MI. The one light then moved quickly to the right. Both started moving up and down and side to side. One then got much brighter, shot over to the right(several miles) in a second. It the flew higher into the sky and expelled 4 other lights that all started independently flying. Another light came from what looked like the water. At one point on light went straight up into the air at an amazing rate of speed. There was another light that appeared to go very quickly into the water too. . We watched for about an hour and my wife and son were getting very nervous and asked to leave. I'm not saying I saw something from another planet, but I have absolutely no idea what we were seeing and ai know a human could not withstand the force being in one of those things with how fast they moved. I just can't image man being able to make something that moved like these things. They would sometimes get very bright and then fade back. Some were green/white and another was red. It was one of the strange things that I have ever seen in my life.