Dry ice and sea smoke
Today I overheard a conversation while I was on a shuttle bus from Toronto Airport to downtown Toronto. We went along Lake Ontario in the -15C temperature, and the bus driver told the other two passengers about the "dry ice effect" on the water surface. It took me a while to realise that he was talking about sea smoke. In very cold winter (e.g. < -15C in Halifax), there is fog on the surface of warm water. (I think it looks more like steam rather than fog because it rises quite fast into the air.) This is caused by moisture condensation, and is called sea smoke. On second thought, this is exactly the same physical effect of "steam" around dry ice. Well I guess this is another way to explain what is sea smoke!