It's not. It's solid ice. As you see I am standing on it without the slightest crack or sinkage... It was 73 degrees on Monday and now there is 2-3" of ice. I love Pennsylvania because I love the four seasons. I would be bored with one type of weather all year 'round... I love when it's 73 degrees and I love the cold and snow, but it can't go back and forth like this... That's just aggravating.