We have Year Round Events that may be walked any day of the year as long as the start location is open, which is every day for most of our walks.  There are over 1800 of these walks in the United States.  See AVA.org for details.  Unless it is Online only, look or ask for the walk box in the lobby of each of the following locations in Sonoma County, California:

Healdsburg - Start at Adels Restaurant, 198 Dry Creek Rd, Healdsburg, CA 95448. Easy 5K, 10K 11K & 21K route; wine tasting venues; Farmers Market on Saturday mornings; beautiful old homes with some history; lots of restaurants and shops; many wineries close by.  This Walk is closed. 

Petaluma Historic
Start at the CVS Drug Store Photo Center, 365 E. Washington Street at the intersection of Lakeville Street, 94952.  The 5K & 10K walks have a few short hills but worth the effort to see beautiful old homes and other buildings, many which have been used in movies such as American Graffiti. 
Online only. 

Santa Rosa Burbank Gardens 
Start at Lucky Market, 915 Village Ct, 95405, call 707-542-3214 for holiday hours.  6K & 10K routes through old neighborhoods and Luther Burbank Home and Gardens. 

Santa Rosa Prince Greenway-Historic
Walk box at Lucky Market. Walk the Prince Greenway and into historic Railroad Square and other historic districts of Santa Rosa. 

Windsor-Near Healdsburg
Start at CVS Pharmacy, 9030 Brooks Rd So. Interesting Historical Society Museum and more!

Sonoma - Start at Best Western Sonoma Valley Inn, 550 Second Street West, 95476.  6K & 10K routes; walk on bike paths and city streets passing Sebastiani Winery, Vella's and the Sonoma Cheese Factories; lots of history including the most  northerly of the California Missions.   Many wine tasting venues and restaurants around the plaza.     

Calistoga - Our venture into Napa County.  Start at Calistoga Roastery, 1426 Lincoln Ave, 94515. Easy 5K & 10K routes through Calistoga with some history of Robert Louis Stevenson and more.

Sebastopol - 5k & 10k, start at CVS at 6877 Sebastopol Ave. The route is on scenic trails, city streets, city & county parks, and Florence Ave famous for it's metal sculptures by Patrick Amiot.
Online only.

Sonoma County 
Stompers
American Volkssport  Association
110 Valley Lakes Drive 
Santa Rosa, CA 95409