i was a passenger in a vehicle and as i looked up in the sky ( it was a clear, bright summer day) i saw 3 or 4 metallic (bright) saucer shaped objects quite high in the sky. 2 or 3 of them were pretty stationary and the other was stopping and starting and what appeared to be incredible speed and agility. i called this to the attention of the driver ( my father-we were returning from an afternoon golf round) but he could not see them because he was on the other side of the vehicle. then, suddenly, all of them took off to my right at incredible speed and were out of sight very quickly.there is absolutely no aircraft that have could made the manuevers they did.