Great Lakes freighters and cruise ships pass through the St. Clair river going to or coming from Lake Huron. On October 1, the MS Hamburg, a luxury Great Lakes cruise ship passed by the St. Clair river next to Port Huron, Michigan. It was on the return leg of a 16 day round trip cruise form Montreal, Canada to Mackinaw Island, Michigan, USA. The ship is about 15000 gross tonnage, 420 passengers, and operated by Plantours Kreuzfahrten Cruise Lines.