Two bright objects hovering in the sky over the sea. A falling star fell beside one of the objects and it darted to the left very fast, almost to avoid it. Both objects darted around in circles and then went away before returning again hovering in the same spot. All of a sudden one of them just darted down over the horizon into the sea and the other just stayed hovering looking towards us. We were totally mesmerised, and suddenly the object just faded away and disappeared. They both had been moving incredibly fast in random directions. There was a blue glow on the horizon where they had been.