The <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Saint_Lawrence_Seaway" id="mw6g" rel="mw:WikiLink" title="Saint Lawrence Seaway">Saint Lawrence Seaway</a>, linking the North American <a href="https://en.wikipedia.org/wiki/Great_Lakes" id="mw6w" rel="mw:WikiLink" title="Great Lakes">Great Lakes</a> and the Atlantic Ocean, officially opens to shipping.