Volunteers are needed for Delaware’s largest urban cleanup: the Christina River Watershed Cleanup. This takes place on Saturday, April 8, from 8 to 11 a.m. Over a dozen sites are available in greater Newark, New Castle, and Wilmington. These include the scenic Christina River, Delaware River, Naamans Creek, Red Clay Creek, and White Clay Creek. Visit ChristinaRiverCleanup.org to register, or call (302) 307-2757. This event is free and children are welcome.