Located in south-central Texas, the Medina River starts from springs in the Edwards Plateau and empties into the San Antonio River 120 miles later. The Medina River is a calm, peaceful river that has very few natural hazards, making it a waterway that can be enjoyed by the entire family. Keep in mind that much of the shoreline is privately owned, so plan your access and exit points carefully.
The one significant danger posed by the river is the possibility of dramatically changing water levels. For water sports, life vests are strongly recommended, especially for kids. Note that, on all Texas waterways, glass and Styrofoam are illegal. The Medina River is no exception. Leave that stuff at home.