Helping Early Alzheimer Patient Do Activities Outside The House (Orinda)

We are very flexible. Looking for help 1 to 7 days a week, 2 to 5 hours per day, anytime between 9:30 a.m. and 6 p.m. Whatever works for you. We are looking for someone to help my father do activities outside the house. He has early Alzheimers. His memory is very poor and so he can't stay on track for things he's trying to do without constant reminders/guidance/prompting. We'd like someone who is very active and can help him be more active (go on walks, play clarinet, crosswords, visit parks/places, go to museums/etc, work on little things around the garden or house, etc). He likes doing errands. He has been less active with his dementia and depression. We have a car for a caregiver to take him on any errands he wants to do. He is in decent physical shape and doesn't need that sort of help.