Let Frommer"s show you where your kids can:Visit the sea lions, the city"s most famous residentsTest their pitching armsLear what life was like on "The Rock"Play the latest video gamesCross the Golden Gate Bridge on a fire truckConduct amazing experiments at a hands-on science museumClimb around on a giant Coca-Cola bottleGet on an Australian walkabout, complete with kangaroosJoin the grownups at an all-ages music clubLive out their favorite nursery rhymesPlus invaluable travel tips on:Age ranges for each sight and activityHotels that offer cribs and rollaway bedsA complete rundown on restaurants with kids" menusShopping for everything from baby booties to import CDsA San Francisco parent"s words of wisdom on safety in the city