Sonoma Community Tennis at Hanna Center is offering a Tennis 3.0 program for children who are 3 years old but not yet 4. The program provides 30-minute tennis lessons with a maximum of three children per lesson, with days and times varying. For members, the cost is $70 for one child, $40 each for two children, or $30 each for three children. Non-members pay an additional $10 per child per lesson. For more information or registration, contact [email protected] or 916-879-0212.