We moved her from Ohio where she lived her whole life. My dad has been gone for 12 years, she lived by herself for 10 yrs until it was no longer ok for her to be alone. Her mind is good except for memory her body is frail, arthritis, osteoporosis and general 90 year old issues.
A senior center is great for someone who is fairly independent. Adult Day Care is appropriate for those who need a little more supervision. Most Adult Day Care programs allow participation from one to five days a week, offer transportation and a meal, and often have additional services such as trimming toenails or showering.
If her mind is still in good condition and she enjoys reading, try various libraries for book clubs. In this area librairies have taken the lead in providing educational and wholesome activities for all ranges of people. One has free classical concerts on Friday evenings.
You might also check local communities to find out if they have outdoor music programs. There are several in this area, ranging from a city sponsored series to church sponsored concerts. All are free. Some are around noon, but others in the evening (that may be more problematic when the days become shorter).
HR, sometimes senior hallucinate when they have UTIs. I would talk to the admins at the facility where your parents are and alert them to his hallucinations and ask how to protect your mother.
My mother didn't recognize my father one time, called me and told me there was a strange man at the door trying to get in. My father calledl me and said Mom wouldn't let him in.
I told my mom I would call Dad and ask him to come home, and I told Dad to drive around the block and keep trying to get in until Mom's hallucination passed.
Mom is 87. Wheelchair bound. Many health issues. She totally enjoys it. It's a social outing for HER and a free day for me. WinWin.