Activities in the city of Temecula
One good place to start is at the city itself. Temecula offers a lot in the way of activities, including atheletics, the arts, and community service.
Follow the link below to see some of the possible activities.
http://temeculaca.gov/301/Community-Services
Also, the link below to the volunteer form will help the City of Temecula match you to various opportunities that may arrive.
http://temeculaca.gov/FormCenter/Community-Services-8/Volunteer-Form-56