In 1985, COA launched the region’s first Beach Sweeps program to rid beaches of unsightly and harmful debris. COA's Beach Sweeps is one of the longest running cleanups of its kind in the world. The program has grown from 75 people at one site in 1985, to over 10,000 volunteers in 2018. Volunteers gather from Raritan to Delaware Bays and along the ocean to clean beaches and waterways, as well as underwater sites. They join as groups (community, school, business, and organization), families, or individuals. Participants collect and record valuable data about debris, which is presented in annual reports and used to advance federal, state, and local programs to reduce litter.