Medina River Natural Area
15890 TX-16, San Antonio, TX
100% positive
Directions: Once parked, walk towards the concrete sidewalk where the landscaping and buildings are. The small building on the left closest to the parking lot is a pair of camp style single occupancy unisex restrooms.
Comments: Campground style toilets (pit toilets). They are generally clean but there's no running water in the restroom itself. There's a water fountain with a tap for cleaning your hands just in front of the restroom building. The area is pretty low traffic. It's not as nice as a proper restroom but it works in a pinch if you get stuck in the area.