Leave No Trace is a national and international program designed to assist outdoor enthusiasts with their decisions about how to reduce their impacts when they hike, camp, picnic, run, bike, hunt, paddle, ride horses, fish, or climb. The program strives to educate all those who enjoy the outdoors and about the nature of their recreational impacts as well as techniques to prevent and minimize such impacts. Good program for families and scout groups who enjoy the outdoors. Kid friendly activity included. Medina River Natural Area is located at 15890 Highway 16 South. All educational programs will be in the outdoor pavilion. For more information, or to register for any program call (210) 207-3106. Suggested donation for each program is $3.00 per person or $5 $3