Lend a hand in a state park at Statewide Volunteer Day on Sept. 24 9/13/2022 12:20:00 PM View Count 3121 Iowans are invited to lend a hand at the Department of Natural Resources’ sixth annual Statewide Volunteer Day on Sept. 24. Several parks across the state will be hosting volunteer events to help spruce up trails, buildings and other park amenities.