 Within the refuge only 450 acres ( 180 ha ) of the Atfalat 'i Unit is open to the public . This section includes the visitor ’ s center with the Wildlife Center and refuge headquarters . The Wildlife Center includes classrooms , a student lab , a gift shop , and informational displays , and is next to a grove of oak trees estimated to be 350 years old . Inside the center are murals , dioramas , and hands @-@ on exhibits , plus the classroom contains skins and skulls of wildlife that live in the refuge . From inside the center , visitors can view the scenery using a viewing scope through a large window overlooking the pond . 
