破冰船是用于破碎水面冰层，开辟航道，保障舰船进出冰封港口、锚地，或引导舰船在冰区航行的勤务船。分为江河、湖泊、港湾或海洋破冰船。船身短而宽，长宽比值小，底部首尾上翘，首柱尖削前倾，总体强度高，首尾和水线区用厚钢板和密骨架加强。推进系统多采用双轴和双轴以上多螺旋桨装置，以柴油机为原动力的动力推进。螺旋桨和舵有防护和加强。破冰时，首部压挤冰层在行进中连续破冰或反复突进破冰。

    Icebreakers smash their way through thick ice, making them some of the toughest vessels out there. What does it take to achieve such an amazing feat? Watch to find out.