Poznan is the largest city midway between Berlin and Warsaw, it can be reached by highway, multiple trains and bus lines.
If you prefer to fly there are regular direct flights to PoznaĆ from more than 20 European airports. And from most of the other places, PoznaĆ should be reachable by plane with only one transfer. You can find your connection by following means.
Rome2Rio is a brilliant app we use on our travels ourselves. It connects all the means of transportation in single search offering you the best connections possible. Jump to Rome2Rio
Google maps will show you connections to Poznan by public transportation or planes according to your selection.
Sorry, no kayaking route to Poznan though. Jump to Google Maps