Touch tables or interactive activities and children's books are available at visitor centers. The rivers provide lots of things to see and areas to explore. Keep your eyes wide open.
For online fun activities that will help you learn more about National Parks and their resources check out the NPS webrangers(www.nps.gov/webrangers/)
Did You Know?
Mussels rely on fish to carry their young around until they are old enough to drop to the river bottom. To attract the fish and attach their young, mussels put on displays that make fish think they are fish or other food. The mussel shell, which is all we normally see, is now barely visible.