The annual Lacamas Lake Clean-Up is 9 a.m. to noon Sept. 30. Meet at Heritage Park, 303 N.W. Lake Rd., Camas. Volunteers will clean up litter and pull ivy around Lacamas Lake. (Ivy removal can by physically demanding and requires bending and pulling.) Wear close-toed shoes and dress for the weather. Bring snacks and water. Register at thewatershedalliance.org/event/annual-lacamas-lake-clean-up-2/?instance_id=321.