Adult CPR with AED - American Red Cross class teaches CPR; choke rescue and rescue breathing; how to deal with cuts, bruises, bleeding and other first aid emergencies. Nov 21, 9 to 4:30. $55, 707.577.7600. Petaluma Veterans Center, 1094 Petaluma Blvd S, Petaluma (North Bay).

Anti-fall Tai Chi Qigong for Seniors - Ongoing classes for elders help improve balance and coordination. By donation. Mon at 11. Mill Valley Community Center, 180 Camino Alto, Mill Valley. Tues at 1. Marguerite Johnson Senior Center, 640 Drake Ave, Marin City. Wed at 9. Whistlestop Wheels, 930 Tamalpais Ave, San Rafael. Wed at 2. Maria B Freitas Senior Community, 455 Manuel T Freitas Pkwy, San Rafael. Thurs at 1. 415.383.9443. Corte Madera Parks and Rec Center, 498 Tamalpais Dr, Corte Madera (North Bay).

Bouverie Fall Walks - Guided two- to five-mile hikes through Bouverie Preserve of Audubon Canyon Ranch. Nov 21, Dec 5, 9:30 to 1:30. $15, 707.938.4554. Bouverie Preserve, 13935 Hwy 12, Glen Ellen (North Bay).

Call for artists - Santa Rosa Recreation, Parks and Community Services invites local artists to exhibit artwork at three city venues: Steele Lane and Finley Community Centers and at the City Hall Council Chambers. Apply year round by submitting an application, available at the Finley Community Center or online at www.srcity.org. Samuel Jones Community Center, 4020 Finley Ave, Santa Rosa (North Bay).

Community Garden Volunteers - Help needed for community spray-free garden. abartl@sonic.net. Juilliard Park, 227 Santa Rosa Ave, Santa Rosa (North Bay).

Conversation Cafe - Open, hosted, drop-in stimulating conversations about topics that matter. First and third Tues, 7 to 8:30; 1710 Coffee, 1710 Mendocino Ave, Santa Rosa. First and third Wed, 6:30 to 8; Coffee Catz, 6761 Sebastopol Ave, Sebastopol. Third Wed, 7 to 8:30; www.conversationcafe.org. Starbucks Coffee, McDowell and East Madison, Petaluma (North Bay).

Craft Faire - Holiday gift event with vendors and raffle prizes. Nov 21, 11 to 4. Free, 707.566.6775. Kobrin Financial Services, 190 Wikiup Dr, Santa Rosa (North Bay).

Day Service Program Assistant - Council on Aging needs volunteers to help seniors participate in social activities. One-day-per-week commitment required. 707.525.0143, ext 105. Sebastopol Senior Center, 167 High St, Sebastopol (North Bay), 707.829.2440.

Dickens Holiday Fair - Fundraiser for Fierce Cheer Elite Boosters trip to national competition features demonstrations by party hostess consultants and local artist's crafts. Nov 21, 1 to 5. Free, 707.480.0826. Fierce Cheer Elite, 555 Rohnert Park Expressway, Rohnert Park (North Bay).

Do-It-Yourself - Learn bike skills and life skills in a series of community-building workshops. Feb 28 at 11am, "Fix-It Skills Around the House." Mar 1 at 11am, "Bike Care Basics: Intro"; at noon, Velo Diversity Day. Free-$10. Synergy, 4019 Sebastopol Rd, Santa Rosa (North Bay), 707.579.5811.

Drivers Needed - Volunteer for ACS's Road to Recovery program and drive cancer patients to their treatments. 707.545.6728. American Cancer Society, 1451 Guerneville Rd, Ste 220, Santa Rosa (North Bay).

Drop-In Meditation - Ongoing weekly classes for all levels include guided meditation and brief commentary. Tues-Wed at 7:30; also Wed at noon. Sun at 10:30, meditation and prayer practice for world peace; kids welcome. $10 donation. Mahakaruna Buddhist Center, 260 Petaluma Blvd N, Petaluma (North Bay), 707.766.7720.

Fall Book Sale - Friends of the Library put up books, cds, dvds and videos. All items in good condition and sorted by category. Nov 19-21, 10 to 5:30. Free, 707.996.3072. Sonoma Valley Regional Library, 755 W Napa St, Sonoma (North Bay), 707.939.0379.

Family Nature Walk - One or two hours, depending on age of children. Rain cancels. Nov 21 at 10. Free, Gerald Moore for English, 707.763.3577; Connie Peabody for Spanish, 707.338.2237. Shollenberger Park, Meet at first kiosk, Petaluma (North Bay).

Feed a Senior - Local grocery stores participate with Sonoma County Council in Aging's Meals on Wheels program to offer a full day's meals with a customer donation of $3.50 on top of their normal purchase. Locations include Big John's Market (Healdsburg), Oliver's Markets, Molsberry Market (Larkfield), Pacific Markets, Skyhawk Village Market and Petaluma Market. Through Nov 26. Big John's Market, 1345 Healdsburg Ave, Healdsburg (North Bay).

Food Not Bombs - Helpers needed to protest war and capitalism by sharing free vegetarian food with anyone who's hungry every Sun at 5. www.scfoodnotbombs.org. Courthouse Square, Third Street and Mendocino Avenue, Santa Rosa (North Bay).

Game Tournaments - Every Sun, 1 to 5, Yu-Gi-Oh tournament. $5. Every Thurs, 5:30 to 9, Legend of the Five Rings tournament. $5. Every Fri, 5:30 to 9, Magic: The Gathering tournament. $7.50. Outer Planes Comics and Games, 526 Seventh St, Santa Rosa (North Bay), 707.546.2000.

Gifts n' Tyme - Over 80 booths of fine art, crafts and gourmet food. Greater Napa Valley Lion's Club bake sale and homemade lunches and dinner. Nov 20, 10 to 7; Nov 21, 10 to 6; Nov 22, 10 to 4. Free, 925.372.8961. Napa Valley Exposition, 575 Third St, Napa (North Bay).

Grief Support Services - Hospice and Adult Day Services offers several types of free grief support groups for Napa County residents including meeting in Calistoga, "Coffee and Conversation" group for men and "Tea and Comfort" for women. Napa Valley Hospice and Adult Day Services, 414 S Jefferson St, Napa (North Bay), 707.258.9080.

Healdsburg Walking Tours - Take insider's peek around town. All walks are easy and last 90 to 120 minutes. Daily at 9, history tour; at 11, specialty foods sampler; at 2, chocolate; at 4, burritos; at 8, ghost tour. Meet at fountain at downtown plaza. Reservations required. $20-$30, 707.484.6249. Downtown Plaza, Healdsburg Avenue and Matheson Street, Healdsburg (North Bay).

History Walking Tour - Learn about historic downtown San Rafael with a tour by Marin History Museum. Every third Sat. $5 general; members free, www.marinhistory.org. Marin History Museum, Boyd Gate House, 1125 B St, San Rafael (North Bay), 415.454.8538, Tues and Fri, 9 to noon; Wed-Thurs, 9 to 4.

HIV Tests & Prevention - Weekly confidential and anonymous tests for HIV and hepatitis C. Sat, 9:30 to noon; Wed, 3 to 6:30. 707.565.4620. Riley Street Clinic, 418 Riley St, Santa Rosa (North Bay).

Holiday Faire - Benefit event for Analy Honor Choir's impending trip to NY to perform at Carnegie Hall. Handcrafted gifts by local artisans, appetizers and refreshments, winetasting, choir performance. Nov 21, 1 to 5. $5-$7, 707.887.2014. Sebastopol Community Church, 1000 Gravenstein Hwy N, Sebastopol (North Bay).

Hollywood Writers' Workshop - Two-day workshop includes presenters Dave Trottier ("The Screenwriter's Bible"), producer Justin Jacquemotte, and poster designer Tony Seiniger. Nov 21-22, 9 to 5. Call for price and registration, 707.539.5115. Hyatt Vineyard Creek, 170 Railroad St, Santa Rosa (North Bay).

Joy Artwalk & Sale - Art and holiday sale highlights eclectic work by 12 West County artists in idyllic Joy Rd Schoolhouse and neighboring Joy Ridge Art Barn. Nov 21-22, 11 to 5. Free, 707.874.9462. Joy Road Schoolhouse, 2400 Joy Rd, Occidental (North Bay).