They are the toughest ships in the water, plowing headlong into one of nature’s hardest obstacles. Modern icebreakers can smash through 10-foot thick ice sheets without stopping, allowing scientists and commercial shipping access to some of earth’s most inhospitable spots. Join our bone-chilling journey as we patrol the Great Lakes on the USCG Cutter Makinaw and traverse the infamous Northwest Passage on the maiden voyage of the USCG Healy, the... see more