September 15: More than 10,000 volunteers from all over Southern California will do their part to clean up their local beaches, rivers, creeks and parks. And that’s just part of the picture: Coastal Cleanup Day happens all around the world. Last year, volunteers removed 800,000 pounds of trash and recyclables from California’s coast and inland waterways in only three hours. Heal the Bay hosts over 50 cleanup sites from Malibu to Pasadena, so it’s easy to participate even if you don’t live near the beach. Check out their website for locations near you and join in! Saturday, 9 a.m. – noon. Free. Locations vary.