Ubirr is a group of rock outcrops in the northest of the Park, on the edge of the Nadab floodplain. There are several large rock overhangs that would have provided excellent shelter to Aboriginal people over thousands of years. Because it is close to the East Alligator River and Nadab floodplains, it means that there would have been plenty of food. This is shown in much of the rock art here. Animals shown in the main gallery include barramundi, catfish, mullet, goanna, snake-necked turtle, pig-nosed turtle, Rock-haunting Ringtail Possum, and wallaby and thylacine (Tasmanian Tiger).