Keith Williams is executive director of NorthBay, an outdoor education program based in northeastern Maryland. Keith has a BS in environmental biology and MS in ecological teaching from Lesley University Audubon Expedition Institute. He worked as an environmental biologist for the U.S. Army before starting his career in education. He has snorkeled extensively in rivers across the United States, has developed river snorkeling–based science curriculum, and works with the U.S. Forest Service to develop river snorkeling programs in a growing number of states including Vermont, Virginia, Alabama, Florida, Colorado, Oregon, South Carolina, and Puerto Rico. He lives in northeastern Maryland, near the lower Susquehanna River.