Mount Wanda walks
Sunset by the Lake concerts 6-8 p.m. Sundays through September, Pleasant Hill City Hall lawn, 100 Gregory Lane. July 21: Patrón Latin Rhythms. 925-671-5229, firstname.lastname@example.org, www.pleasanthillconcerts.com.
Free Downtown Plaza concert series 6:30-8:30 p.m. third Thursdays through September, between Sweet Tomatoes, Jack's Restaurant, Pleasant Hill. www.shopdowntownpleasanthill.com/.
Blues & Brews
Bag of books sale
Martinez Friends of Library $5 Bag-of-Books Sale, 11 a.m.-4 p.m. Aug. 3, Martinez Library, lower level, 740 Court St. 925-646-9900.
Leave it to beaver
Beaver Festival 11 a.m.-4 p.m. Aug. 3, Beaver Park, corner of Marina Vista, Alhambra Avenue, Martinez. Learn how beavers help watershed, wildlife. www.martinezbeavers.org/wordpress.
Movies, puppets, stories
Chevron Family Theatre Festival 10 a.m.-4 p.m. July 20, Lesher Center for the Arts, 1601 Civic Dr., Walnut Creek. Family day of entertainment. $5, activities free. 925-295-7469, www.LesherArtsCenter.org.
Volunteers of America collecting backpacks, school supplies for foster youth, homeless through Ju
ly 26. For Contra Costa drop-off: OperationBackpackBayArea.org.
Diablo Valley College free career information 7-8 p.m. July 31, Aug. 6, BLF Community Conference Center, 321 Golf Club Road, Pleasant Hill. Learn about industrial equipment maintenance careers. www.dvc.edu/mTECH-info.