Amazing! We took our two boys August of 2015. The weather was amazing. we spent the day in the town of Medora which has so much to do and so filled with history .back at the campground, which we located a spot right next to the river ,the boys went fishing. Then we drove around and saw 3 herds of wild horses. we saw Buffalo also. Though not as many as in the north unit. the bathrooms have running water and are immaculately clean. the campgrounds are clean and well kept and the oark rangers were friendly.