Marin County Parks RestorationMarin County Parks hosts volunteer workdays in their parks and open spaces on a regular basis, including weed clearing, pulling broom, planting new seedlings, and beach and creek cleanups. All ages and abilities are welcome, including beginners, children, and seniors. The work varies in physical demand, but for most events they provide a variety of activities suitable for all ages and abilities. Sign up to get a monthly email listing their upcoming nature walks and volunteer events here.