The Watershed Alliance of Southwest Washington will host a litter clean-up from 9 a.m. to 11:30 a.m. April 6 at the Ridgefield Waterfront Boat Ramp, 5 Mill St., Ridgefield. Volunteers should wear closed-toed shoes, dress for the weather and bring snacks and water. Tools, litter pickers, and gloves will be provided. Learn more at thewatershedalliance.org.

Join volunteers with the Ridgefield Garden Club to pull English ivy at Abrams Park, 400 Abrams Park Road, Ridgefield, from 9 a.m. to noon April 6. Wear long pants and sturdy shoes. Bring snacks and water. Register at thewatershedalliance.org.