Dance the night away
Clayton Valley Woman's Club fundraiser 5 p.m. Oct. 13, Oakhurst Country Club, 1001 Peacock Creek Drive, Clayton. Music by ABC7 anchorman Dan Ashley, band PUSH. Raffles, silent auction. Benefits local charities. $47.50 by Oct. 1. 925-672-9448, www.claytonvalleywomansclub.org.
Grief support for kids
Hospice of East Bay's bereavement support for children, teens meets 6-7:30 p.m. Oct 1, 3470 Buskirk Ave., Pleasant Hill. Helping youth deal with the loss of loved one. Free. Registration: 925-887-5681.
Mount Diablo tarantula treks 4-6 p.m. Sept. 29, Oct. 6, Mitchell Canton Visitor Center, 96 Mitchell Canyon Road, Clayton. Learn about lives of scary but harmless tarantulas. Free, parking fee $6. www.mdia.org, 925-927-7222.
Autumn at the Adobe
Autumn at the Adobe 1-4 p.m. Oct. 6, Salvio Pacheco Adobe, 1870 Adobe St., Concord. Wine tasting, beer, hors d'oeuvres, cash raffle prizes. $35 at door; raffle tickets $5 for one, $20 for five. Presented by Concord Historical Society. 925-682-7271.
Gently used book sale
Concord Library book sale 1-8 p.m. Sept. 27; 10 a.m.-6 p.m. Sept. 28; 1-4 p.m. Sept. 29, 2900 Salvio St. Hardcovers $1, paperbacks 50 cents, children's 25-50 cents, media $1. Sunday sale $3 per bag. Benefits library programs. 925-646-5455.
Social and Latin ballroom dancing 7-9 p.m. Fridays, Concord Senior Center. 2727 Parkside Circle, Concord. All ages, learn steps, $4. For dates, call 925-671-3320.
Afternoon with author Elizabeth Lonseth, 3 p.m. Sept. 29, Montecito Oakmont Senior Living, 4756 Clayton Road, Concord. Lonseth's novels have strong spiritual message with multithreaded storylines. Free. R.S.V.P.: 925-692-5838.
Growing up Muir
National Public Lands Day 6 p.m. Sept. 28, 4202 Alhambra Blvd. Martinez. Explore a view of John Muir life, celebrate National Public Lands Day. Robert Hanna, great-grandson of Muir speaks. Free. Register: 925-228-8860.
Icing with the stars
Contra Costa Cake Show 10 a.m.-4 p.m. Oct. 5, Concord Willow Pass Center, 2748 E. Olivera Road, Concord. Adults, children showcase cake decorating skills. Prizes. $10 entry fee. Registration: www.contracostacakeclub.org.
Helping furry friends
Wine & Whiskers 5-8 p.m. Sept. 28, 2890 Mitchell Drive, Walnut Creek. ARF celebrates decade of sheltering animals. Proceeds benefit animals. Wine, appetizers. $80. www.arf.net.
Fall plant sale
Diablo Valley College plant sale 2-5 p.m. Sept. 27; 9 a.m.-1 p.m. Sept. 28, 321 Golf Club Road, Pleasant Hill. Roses, vegetables, herbs, shrubs, trees, berries. $1-$12. Park in lot 9. 510-685-7024.
Contra Costa Taxpayers Association breakfast 7:45-9:30 a.m. Sept. 27, Denny's, 1313 Willow Pass Road, Concord. Gus Kramer talks about assessments in Contra Costa County. $20. 925-289-9200, firstname.lastname@example.org. www.cocotax.org.