MISSION CHRISTMAS, DEC. 9

Sonoma: Sonoma State Historic Park’s annual Christmas at the Mission celebration, 114 E. Spain St. Program times are 5, 6 and 7 p.m. Limit of four tickets per person, $2.50 per ticket suggested donation. Call 707-938-9560 for ticket information.

SMART CYCLING, DEC. 16

Santa Rosa: Sonoma County Bicycle Coalition’s overview of cycling classroom instruction 9 a.m. to 11:30 a.m. at the coalition’s office, 750 Mendocino Ave. A bike is not required but bring a helmet for instructions on proper fitting. $20, $10 for coalition members. The coalition’s Biker Chicks December ride is at 10 a.m. Visit bikesonoma.org or call 707-545-0153 for information about both events.

SATURDAY HIKE, DEC. 16

Glen Ellen: Guided weekly hike at Jack London State Historic Park. Meet at 10 a.m. in the Ranch parking lot, 2400 London Ranch Road. Free admission. Bring water, lunch or snack. Rain cancels the event. Visit jacklondonpark.com or call 707-938-5216 for information.

LAST RUN, DEC. 16

Santa Rosa: The Empire Runners Club holds its last 10K and 2-mile foot race at Howarth Park, Spring Lake Regional Park and Trione-Annadel State Park at 9 a.m. $10 nonmember registration by Dec. 13, same day registration is $20. Register at events@empirerunners.org.

MUSHROOM FORAY, DEC. 17

Santa Rosa: Explore and learn about mushrooms in and around the Laguna de Santa Rosa with retired science teacher Darvin DeShazer an the Laguna de Santa Rosa Environmental Center, 900 Sanford Road. Rain or shine, 9:30 a.m. to 3:30 p.m. For ages 12 and up, children must be accompanied by an adult. $95, preregistration required. Visit lagunafoundation.org to register and get details.