River snorkeling provides a new way to experience discovery and adventure in our freshwater rivers. They contain some of the most stunning and fascinating life on the planet and hold biological treasures hidden from view. The colors and beauty of some of our rivers rival coral reefs, yet we are losing that treasure faster than we are losing biodiversity from any other ecosystem on the planet. Underwater naturalist Keith Williams has spent the last 15 years exploring and documenting life in freshwater rivers and streams. He has snorkeled with alligators in Florida springs, migrating salmon in Oregon rivers, giant shrimp in Latin America, and darters in Pennsylvania. He has snorkeled frozen Maine rivers in the middle of winter and world heritage sites in China. He will share the life he has seen and the adventures he has experienced in an engaging and entertaining presentation.