Companion Care Needed

My 81 y/o father is generally healthy, now with moderate dementia. Independent with ADLs with cues (meds, showers). He is very social, loves sports and music, used to be an outdoorsman & is a retired CMU professor. We are seeking some socialization and activity outside the home to combat his boredom! Currently lives with an adult daughter who works all day & does not have flexibility for such things. Hours/wk negotiable, but would not need more than 10-12.