River Voices Audio Adventure Tour     Find out : What 150 pound fish makes the Hudson its home? Where is the oldest ferry crossing in the United States? What Hudson River Native can be identified by its red tipped "fingers"?  Look for this sign in Hudson River waterfront parks. Call 845-790-8771 and press the number of the story you want to hear   or   Listen Now  Down by the River,used by permission, was composed by Jean McAvoy (© 1994), arranged and performed by Betty and the Baby Boomers. To find out more about Betty and the Baby Boomers visit babyandthebabyboomers.com.   The New York State Department of Environmental Conservation provided funding for this project from the Environmental Protection Fund through the Hudson River Estuary Program.