GUT BUSTER, NOV. 5

Healdsburg: Families can come out for the second annual road-and-trail walk-and-run Gut Buster cancer fundraiser, that starts at 8 a.m. at the downtown Healdsburg Plaza. Choose from 3K, 10K and 12.5K — longer events are around or over Fitch Mountain. Same-day registration begins at 6:30 a.m. Net profits from the event benefit the nonprofits No Stomach for Cancer and the Ceres Community Project. The walk and runs starts and finishes at the Plaza. Optional donation pancake breakfast available. The event happens rain or shine. Contact Vern Losh at gutbusterfunrun@gmail.com, call 707-540-2929 or visit Gut Buster Fun Run on Facebook for information.

ANCIENT TRADERS, NOV. 2

Santa Rosa: Dr. Jay Reti explains how archaeologists use artifacts, rocks and bones to determine where people are from, where they traveled and how they interacted and traded with each other. The presentation is from 7 to 8:30 p.m. Thursday at Heron Hall in the Laguna Environmental Center, 900 Sanford Road. $12 non refundable, preregister at lagunafoundationorg.

COSMIC COMIC, NOV. 4

Santa Rosa: Swami Beyondananda (Steve Bhaerman) provides wisdom disguised as comedy and comedy disguised as wisdom about environmental issues pertinent to the Laguna de Santa Rosa and in general. The cost is $25, preregistration required. Some no-cost tickets are available to people affected by the fires. Visit lagunafoundation.org.

BIRDING, NOV. 4

Location to be Announced: Stewards of the Coast and Redwoods presents Birding for Beginners during an easy to moderate walk 7 to 10 a.m. $20 for nonmembers, $16 for members. Visit stewardscr.org for location and other details.

COMMUNITY DINNER, NOV. 4

Bodega: Bodega Land Trust’s 25th anniversary Fall Harvest community dinner and silent auction, 5:30 to 8:30 p.m. at McCaughey Hall, Bodega. Classical guitar by Pablo Rodriguez and dinner by local chefs. Admission is $20 or $15 if you bring a salad or desert to share. Visit BodegaLandTrust.org or call 707-874-9001 for information.

GUIDED HIKE, NOV. 4

Ukiah: Join the Coastal Explorers talk and easy, 2-mile, one-hour guided hike at 1 p.m. in the Point Arena-Stornetta Unit of the California Coastal National Monument. Meet at the Bend in the Road footpath access to the Point Arena-Stornetta Unit. Call Serena Baker 916-941-3146 or 707-468-4000 for information.

--James Lanaras