Mount Diablo Summit Museum spider PowerPoint presentation, noon-2 p.m. Sept 12, 96 Mitchell Canyon Road, Clayton. Learn about tarantulas, spiders in Contra Costa County. Live tarantula display. $10. 925-837-6119, www.mdia.org/site.
Introduction to Facebook, 12:45-2:15 p.m., Sept. 14, Concord Senior Center, 2727 Parkside Circle. Set up account, learn to safely use Facebook. Must have email address. $16. 925-671-3320, http://www.ci.concord.ca.us/recreation/events/srevents.htm.
Closed for Labor Day
Derby, classic car show
Ninth annual Clayton Soap Box Derby, Classic Car Show, 9 a.m.-3 p.m. Sept. 1, Main Street and Marsh Creek
Trip to the islands
Hawaiian Fusion, 4:30 p.m., Sept. 7, Centre Concord, 5298 Clayton Road. Features Bruce Shimabukuro with Hawaiian music, food, boutique, more. Proceeds benefit Concord Senior Center programs. $48. 925-671-3320, www.cityofconcord.org/hawaiianfusion.
Pops on the Plaza
Target Pops on the Plaza concert with California Symphony, 6:30 p.m. Aug. 30, Todos Santos Plaza, Willow Pass Road at Grant Street, downtown Concord. ABC 7 news anchor Dan Ashley emcees. Kids activities. Free admission, parking. Information: 925-280-2490, www.california symphony.org.
Republican women meet
Ygnacio Valley Republican Women meet 10 a.m. Sept 19, Oakhurst Country Club, 1001 Peacock Creek Drive, Clayton. Speaker is Becky Kolberg, chairman of Contra Costa Republican Party. $25. Barbara Allen, 925-672-5061.
Free CERT training
Concord Community Emergency Response Team training, 9 a.m.-5 p.m. Sept. 8, 15, 22, fire training facility, 2945 Treat Blvd., Concord. Learn basic fire safety, disaster preparedness, more. Registration: 925-603-5933.
Stuff the Bus campaign
Drop off backpacks full of school supplies through Sept. 9, Krispy Kreme, 1991 Diamond Blvd., Concord. Donors receive free doughnuts. Supplies distributed by Concord Salvation Army. 916-563-3731.
At the Grove
Concerts in the Grove 6-8:30 p.m. Sept. 1, Grove Park Gazebo, Main Street, Clayton. Laurent Fourgo with swing, jazz. Bring blankets, chairs. Free, donations appreciated. 925-673-7300. www.fourgo.com.
For the love of vultures
Author, naturalist Diane Lang signs first children's book, "Vulture Verses, Love Poems for the Unloved," 11 a.m.-1 p.m. Sept. 1, Lindsay Wildlife Museum, 1931 First Ave., Walnut Creek. 925 935 1978. Books available at event.
Blue moon hike
Hike in Mitchell Canyon area to celebrate "blue moon," 6:30-9:30 p.m. Aug. 30. Meet at Mitchell Canyon Visitor Center, 96 Mitchell Canyon Road, Clayton. Bring flashlight, jacket. Free, parking $6. RSVP: email@example.com. 925-837-2525.
Items included on space-available basis; not all items published. E-mail firstname.lastname@example.org.