The coldest invasion known to CouchSurfing was upon us in Duluth, MN. This year's highlights included a walk through Pattinson State Park to see the frozen Little Manitou Falls and a mineral-laden river, a potluck at an art gallery, a walk on the beach next to Duluth and the Knife River further north, and of course the famous Betty's Pies and the ice bar. I was happy to see the more even split between Wisconsin and Minnesota this year, with the entire bar crawl occurring in Superior. It was another fun event and a great way to end a week of travel.