Kazimierz Dolny is a neat little town but you are confined to mainly dining out and drinking. The Market Square pubs are good for that - the square looks great with the lights on!
A few seasonal events may be taking place in summer, but don't count on "something going on while you're there"...
What could be better than lounging over a cup of tea with friends...perhaps argueing politics? Or...better yet....commisserating over similar thinking.