Forestville: The deadline is April 2 to register teams online for the 2018 Russian River Mud Run on April 8 at Ya Ka Ama near Forestville. There are 5K and 10K races for adults and children and registration prices vary. Details available at www.russianrivermudrun.com.
BICYCLE CLASS, MARCH 17
Santa Rosa: The Sonoma County Bicycle Coalition’s on-bike class for those who have completed the previous classroom instruction is 9 a.m.-1 p.m. at 750 Mendocino Ave. Call 707-545-0153 for information.
MINDFUL WALK: MARCH 17
Glen Ellen: Jeff Falconer leads a relaxed, 1.5-mile mindful walk to the lake at Jack London State Historic Park, 2400 London Ranch Road, 10-11 a.m. with an option to continue another three miles. $10 plus parking. Meet in the ranch parking lot. Visit jacklondonpark.com for information.
GARDEN WALK, MARCH 17
Glen Ellen: Docent Kathleen Aspenns leads the first of four Garden Walks at Quarryhill Botanical Garden, 12841 Highway 12. Each monthly 10 a.m.-12 p.m. walk starting Saturday highlights rare, seasonal Asian flora in bloom in spring and summer. $12 general admission, $10 for members. Register at quarryhillbg.org/page153.html. Call 707-996-3166 for information.
GARDEN WORKDAY, MARCH 17
Santa Rosa:Join the Larkfield Community Garden workday at Maddux Ranch Regional Park, 4655 Lavell Road 10 a.m.-2 p.m. Bring water, snacks and work gloves and wear sturdy shoes and a hat. Parking $7. For information email ProgramDirector@communitysoil.org.
SUGARLOAF HIKE, MARCH 17
Kenwood: Reservations are still available for Bill & Dave Hikes’ and the Sonoma Ecology Center’s Brunch on Bald Mountain fundraiser 9:30 a.m. Saturday at Sugarloaf Ridge State Park, 2605 Adobe Canyon Road. Hike to the top of Bald Mountain or relax during a ride to the summit for a fee by a chauffeur. The roundtrip hike is 6.5 miles.Proceeds will be used to rebuild fire damaged trails. Reservations are $10-$60 and are available at brownpapertickets.com. Visit billanddavehikes.com for details. Call 707-838-5712 for information.
FAMILY HIKE, MARCH 17
Santa Rosa: Enjoy a family hike and visit the Environmental Discovery Center at Spring Lake Regional Park, 393 Violetti Road. Programs start at 1 and 3 p.m. Parking $7. Call 707-539-2865 or visit SonomaCountyParks.org. for information.
FAMILY WALK, MARCH 17
Santa Rosa: Free, guided moderate 1.5-mile walk designed for families with children at Pepperwood Preserve, 2130 Pepperwood Preserve Road, 10 a.m.-12 p.m. Meet at the Dwight Center. Donations accepted. Visit pepperwoodpreserve.org for details.
EQUINOX WALK, MARCH 20
Santa Rosa: Celebrate the arrival of Spring with a 3-mile walk along the wheelchair accessible Laguna de Santa Rosa Trail 4:30-6 p.m. Meet at 6303 state Highway 12. Parking $7. Call 707-565-2041.
HOOD MOUNTAIN HIKE, MARCH 24
Santa Rosa: Join Bill and Dave Hikes for a moderately strenuous 6.5-mile hike in the extreme northern part of Hood Mountain Regional Park and the McCormick extension of Sugarloaf Ridge State Park. Meet at the Los Alamos Road parking lot at 9:45 a.m. Parking $7. Visit SonomaCountyParks.org for details.