Last couple of nights strange iridescent creatures have been swimming along our cliff and I was wondering if anyone had any idea what they might be. They seem to bunch tight together then they will shoot out 10-15 feet long, all one creature with about 15 segments. When they move forward they move like a real slow snake, I think one part from the rear shoots to the front like a track. Each part is iridescent. They definitely have motion and direction. They look like long pieces of seaweed but when you shine a light on them you see nothing. Completely nothing. And when you shine the light on them as a group they will scatter. Also, they travel in a long group. I am not for sure how many but easily a half kilometer trail of them. Also, they will turn off all the lights at the same time sometimes. See little bright gold flashes sometimes. I tried to take pics but nothing either with flash or on avail light .... Anyone ever see anything like this.