This is where the ice has decided to stack up this winter, because this is where most of the vessels have had trouble. We've had to even break more ice. This nearly 40 year old Coast Guard vessel is crashing through about a foot of ice on New York's Hudson River.Icebreakers like this provide safe passage for cargo ships on frozen waterways and the Great Lakes. Even larger polar icebreakers patrol the Arctic and Antarctica, where they are able to slice through up to 21ft of ice. These vessels are in high dem ...