City of Berkeley Parks & Recreation

Not at San Pablo park but the City of Berkeley offers beginner and intermediate tennis lessons through the recreation dept and they are very good. I've taken them (at Cedar Rose and Kenney Parks I believe) and they were a fun way to do something active and meet others. There are also some private tennis schools that advertise on the courts at King Park on Hopkins St in North Berkeley.  Maybe drive by and call the number to see what you think.  I have friends who have taken though those programs as well for kids and they were great.