In mid September, Man, Son # 1, Wife of Son # 1, Twins L & M, and yours truly went to a local celebration. They had tent full of butterflies, most, I believe were monarchs. You could go in and observe close and personal and even try to "catch" one on a q-tip dipped in Gaterade (you know the disclaimer routine, name copyrighted by the company, etc. etc., etc.)
The girls went right in, I held back for a moment or two, but in the quest for photos, in I went. Only downer, I could not stop taking photos, see: