Get five ice breaker films on one DVD! In Cruising Northern Waters, Canadian Icebreaker, and Arctic Operation, you'll see American and Canadian ships in the frozen north; 7 Newsreels on Icebreakers shows you the Northwest Passage, how ice breakers work, and other interesting shorts; and USCG Mackinaw WAC 83 shows you action on the Great Lakes during World War II and the launching of the new WAC 30 Mackinaw. B&W and color, 1 hr 16 min. total runtime.