Plastic bottles, bits of old toys, a random Styrofoam buoy—a beach doesn’t just contain sand and shells anymore. Pollution is a big problem. So, for its Earth Day celebration, the Children’s Museum of Sonoma County will be hosting A Theater for Children’s Pollution Pirates. Together with troupe members dressed up as bees, butterflies, and frogs, the Pirates will educate youngsters about the importance of taking care of the environment. The day will also include a chance to meet animals and even learn a Polynesian dance. Festivities happen on April 2, 10 a.m.–2 p.m., at the museum in Santa Rosa and are free with admission ($11–$14 or free for babies 11 months and younger). Find out more at tinyurl.com/ywhc63m2.