Szczecin in North-Western Poland has a deep commitment to sail training. Discover the Underground City Trails: a network of bunkers from WWII with their unique atmosphere. If you're more of an outdorsy type, take a canoe along the Odra river or explore Bukowe Hills which hide the ruins of old bridges and are home to numerous boars and deer. Visit one of many museums or the Castle of Pomeranian Dukes or the beautiful rose gardens.
Rotterdam is the largest port of Europe, and a modern, bustling town. Much of the historic city centre was destroyed during World War II, but extensive rebuilding resulted in a modern, multicultural city with many architectural highlights. Rotterdam has excellent cultural facilities and a diverse nightlife; during the summer the city hosts a large number of events. Discover the city by bicycle and go for a coffee in Hotel New York, the former headquarters of the Holland America Line.