Many thanks to those who replied to my querys about solo senior travel in Poland and to my query about Luszczanowice. I found all the replies very helpful. I have decided that my options are :- going from city to city by train, researching the tour companies for a suitable itinerary, and/or trying to find someone to travel with me.
A few years ago I drove around Europe solo for about 8 weeks. It seems to me that Poland could be a bit more of a challenge.