Oktoberfest Cotati-Style: On Saturday from noon to 6 p.m., La Plaza Park transforms itself into a lively biergarten, with plenty of oom-pah-pah tunes by Karl Lebherz and his Bavarian Band, polka dancing and, 'tis true, Weiner Dog Races at 2 p.m.
There will be a Women's Beer Stein Race at 4 p.m. and a Men's Tankard Hold at 3 p.m. in the park at Old Redwood Highway and West Sierra Ave.
Admission is free, and for $15 you can enjoy a meal of grilled bratwurst, sauerkraut, German potato salad, gingerbread and a beverage, either beer, wine, root beer or water. Vegetarian bratwurst will be available on request.
Celebrating the Season at Shone Farm: Santa Rosa Junior College's Shone Farm hosts a Fall Festival from 10 a.m. to 3 p.m. Saturday. Look for a petting zoo, games for kids, sawmill and equestrian drill team demonstrations, apple pressing and tasting, and a tasting of the farm's olive oil and award-winning wines.
In addition, students from the Culinary Arts program will prepare a barbecue at the farm, located at 7450 Olson Lane, off Eastside Road, southwest of Forestville.
Fruits and vegetables from the farm and estate wines and olive oils will be available for purchase. If you are so inclined, you can pick your own pumpkins and take a tour of the farm.
For more information and a map to the farm, visit shonefarm.com.
Admission to the festival is free.
Loving Your Laguna: Saturday is Laguna Keepers Day, when volunteers will gather from 9 a.m. to noon at Duer Creek at Kelly Farm to remove planting and irrigation hardware from a successful riparian restoration project.
From 3 to 5 p.m. on Saturday, there's an opening reception at Heron Hall for a new show of paintings by Marge Mount, a longtime friend of the Laguna. The reception will feature refreshments and live music by the Tempos. Proceeds from art sales will benefit the Laguna Foundation.