VIDEO: Two men had to be rescued from Delavan Lake in a hovercraft after their ATV broke through the ice Tuesday morning. Witnesses told first responders they heard the ATV go through the ice but could not see the men because of the dense fog in the area. "The fog was 100 percent dense. You couldn't see more than 50 to 75 feet. But we could hear that they were still yelling, so that helped," said Chief Jamie Jarosz of the Town of Delavan Fire Department. Rescue crews followed those calls for help to locate the 66-year-old and 31-year-old men and pull them from the icy water just in time. "I'm not an expert, but I don't know that they could have lasted much longer," said police Chief Raymond Clark.