A 9-person juggling act, acrobats, contortionists, hula hoops, madcap clowns, all packed into non-stop 60 minutes at the 11th annual Circus Bella at deFremery Park in Oakland at 5:30 on June 14. It’s a revival of one-ring circuses where audiences are not distracted by more than they can see. It’s all very old-fashioned but if you want to sit comfortably bring a chair. They are otherwise not provided. Playing around the Bay Area through the summer.