like a large balloon kind of ameoba shape. huge about two planes size. sort of moving wobbly. lights around the edge kind of but cant realy explain.

it was just hovering but constantly changing shape slowly like a jelly fish

i was driving on the cowbridge by pass, towards bridgend, with my 14 year old daughter. we had just finished work ay a near by riding stables. we saw the shape from a short distance away and were baffled by it. I slowed down to get a good look. It was on the passenger side over what i think was a school. We were both facinated but scared. I just knew i had to drive fast and get the hell out of there. I could still see it in the rear view mirror and my daughter was turned around watching it. It was still in the same place when we last saw it. Nobody believed us and I didnt think to report it to any official. We still talk to each other about what we saw and we are both convinced it was a ufo. By the way we checked to see if there had been anything happening in cowbridge that evening like a laser show or something . There was nothing going on. I cant be more specific about the month etc but guess it was autumn as it was twilight.