FRIDAY, JUNE 30: Class will take place indoors at the Callinan Sports & Fitness Center gymnasium. The drills taught at this camp will help your kids fall in love with the game of volleyball. Our Grass volleyball camps are the perfect place to learn about the game and fitness. For questions regarding the National Academy of Athletics camps, please contact the NAofA main office at (707) 791-7593 (Monday - Friday between 9am - 5pm).