I saw some going down the anchor rope in my boat. I stuffed a rag in the hole around the rope and left it alone until it got cold out. I then got inside this winter to find this.....and about a thousand dead yellow jackets on the floor. I had to get my shop vac out o suck it all out and man did it smell......
The nest hanging on the rope is about a foot and half long and the section at the bottom is about 2 feet around and about a foot deep as that is the rope coil that they built the nest around.