Submit calendar items to Calendar@pioneerpublishers.com.

In the Community

SIR Branch 19 Monthly Luncheon. With guest speaker Rich Smith, who played a key role in the cleanup of the Exxon Valdez oil spill in Alaska in 1989. Noon March 3, Greenery Restaurant, 1551 Marchbanks Dr, Walnut Creek. Guests welcome; call 925 338-1996. For details about SIRs, visit http://www.sir19.org.

Urban Forestry Workshop: Become a Tree Leader. Learn about trees, tree care and how the urban forest benefits our future generations. Sponsored by the CIRCLE partnership, Concord Rotary and the city of Concord. 9 a.m.-noon March 5, Markham Park, 1202 La Vista Ave., Concord. Free. 714-926-0563.

Red Cross Blood Drive. Sponsored by Concord Elks 1994 and VFW 1525. 9 a.m.-3 p.m. April 5, Concord Elks Lodge, 3565 Clayton Road. Register at redcrossblood.org. Click “Find a Drive,” enter zip code 94519 and scroll to April 5.

Contra Costa Con 3. Featuring C. Andrew Nelson (Darth Vader) and Alan Fernandes (Tusken raider) in “Star Wars,” plus a free, family-friendly Cosplay Costume Contest. 10 a.m.-4 p.m. April 10, Concord Hilton, 1970 Diamond Blvd. Kids under 10 and parking are free. Advance tickets at contracostacon.com.

Farmers Market. Sponsored by the Pacific Coast Farmers Market Association. 9 a.m.-2 p.m. Tuesdays, Todos Santos Plaza, Concord. pcfma.org.

Education

Contra Costa County Office of Education Certificated Job Fair. Discuss credential programs and options for current classified and certificated staff to further their education. 9 a.m.-11:30 a.m. Feb. 26, Alhambra High School, 150 E St., Martinez. Register at bit.ly/2022cccoejobfair.

Diablo Valley Literacy Council Tutor Training. Educational materials and insights to teach English as a Second Language (ESL). Begins March 5. $20. Register at dvlc4esl.org.

Your Health

Dementia Education and Support Group. With Gia Barsell, manager of Dementia Services and Community Education at Hope Hospice. Ten sessions in March via Zoom. Free. Register at giab@hopehospice.com.

“Living With Dementia: Managing Daily Care.” Hope Hospice’s dementia specialists will offer strategies via Zoom for planning daily activities and discuss the impact of social and leisure activities. 10-11:30 a.m. March 10. Free. Register at hopehospice.com/family.

“Understanding Advanced Illness.” Hope Hospice clinical staff will provide information via Zoom about the most prevalent co-existing medical conditions among the elderly and the importance of medication management. 10-11:30 a.m. April 14. Free. Register at hopehospice.com/family.

Outdoors

Reinhardt Redwood Regional Park/Oakland. Naturalist-led Wednesday Walk, 9:30 a.m.-12:30 p.m. Feb. 23. Free. Meet at the Skyline Gate on Skyline Boulevard. 510-544-3187.

Big Break Regional Shoreline/Oakley. Naturalist Nichole Gange and the visitor center staff will be available to answer gardening questions, and provide seeds to grow vegetables, flowers and native pollinators, 1-2 p.m. Feb. 25-26. 510-544-2753.

Sibley Volcanic Regional Preserve/Oakland. “Volcanos, Labyrinths, Quarries and Newts,” a 2½-mile moderate hike, 10 a.m.-12:30 p.m. Feb. 26 at Sibley. Free drop-in. 510-544-3187.

Black Diamond Mines Regional Preserve/Antioch. “Black History in the Outdoors & Nature Trivia Kahoot,” online program 6-7 p.m. Feb. 26. To participate, visit the Black Diamond Mines Facebook page at 6 p.m. to meet the “game host.” Then use an additional tech device, such as a cell phone, tablet or laptop, to go to https://kahoot.it.com. Wait for host to give instructions and a PIN number.

The Arts

Valley Art Gallery. “Wintermission,” with more than 100 artists reflecting a wide range of styles, through March 5. Spring collection opens March 19. 1661 Botelho Drive, Suite 110, Walnut Creek. Free. valleyartgallery.org or 925-935-4311.

Brian Stokes Mitchell. Broadway legend and versatile singer. 7:30 p.m. Feb. 25, Lesher Center for the Arts, 1601 Civic Dr., Walnut Creek. 925-943-SHOW or www.lesherartscenter.org.

“The Hound of the Baskervilles.” A new adaptation from Pittsburg Community Theatre. Feb. 25-March 6, Steeltown Coffee & Tea, 695 Railroad Ave., Pittsburg. $15 in advance; $20 at door. pctca.org/tickets or 925-439-PLAY.

“Festival 10 – A Treasury of 10-Minute Plays.” From Ghostlight Theatre Ensemble. March 25-27, Brentwood Community Center, 35 Oak St. ghostlightte.org.