I envy you your trip.
I have only one thing to add. It seems to be a feature of Polish humor to teach people who don't know the language words and phrases that are not, um, drawing room appropriate. This was a warning from my Polish violin teacher and experience from my grandmother, who taught me to tell my sister that she has a fat butt. (The only Polish I managed to learn) As I recall, during the Carter administration, there was an embarrassing incident, as well.
So, with that one warning, have fun - and come back with pictures.
Give big space to the festive dog that make sport in the roadway. Avoid entanglement with your wheel spoke.
(Sign in Japan)
1978 Raleigh Gran Prix
2003 EZ Sport AX