The beauty of Pere Lachaise is that it is very peaceful and the people who visit are not dopes. I had conversations with many educated people there quite unlike Place Saint-Michel which seemed to be populated by idiots. The behaviour of some tourists was very bad.
The weather was beautiful and the walk through the cemetery was very relaxing. For others intending to visit I recommend entering the cemetery at Gambetta, as we did, and walking downhill to the main entrance.
https://teakdoor.com/images/smilies1/You_Rock_Emoticon.gif
http://www.pere-lachaise.com/perelachaise.php?lang=en