Learn about volcanoes, run a free 5k and more this month in Sonoma County

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Gualala: Learn how plate tectonics and volcano activity shape landscape during a 2- to 3-mile hike 10-11:30 a.m. at Gualala Point, 42401 Coast Highway 1. Parking $7, free for Regional Parks members. 707-539-2865,


Kenwood: Peaceful 2-mile hike in Sugarloaf Ridge State Park, 2605 Adobe Canyon Road, 10 a.m.-noon. Meet at the Visitors Center. $10 per vehicle entry fee. 707-833-5712,


Santa Rosa: The Sonoma County Bicycle Coalition’s Smart Cycling, a general overview of cycling class 6-8:30 p.m. at 750 Mendocino Ave. Does not require a bicycle. An on-bike class B and ride will follow in March. $20, $10 for coalition members. Classes may be canceled for lack of enrollment. Call 707-545-0153.


Sonoma: Play a game and learn about food and agriculture at the Sonoma Mission, 114 East Spain St. during a 40-minute drop-in activity designed for 4th grade students. 11:30 a.m.-3 p.m. $3 adults, $2 kids 6-17, 5 and under free. 707-938-9560.

5K RUN, Feb. 22

Santa Rosa: Empire Runners Club’s Free 5K run, 8-10 a.m. in Southwest Community Park, 1698 Hearn Ave. All ages and levels welcome.

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