There are plenty of animal antics to enchant the entire family at Hillcrest Park Zoo. Wild creatures move freely or in modest enclosures, complete with trees, streams, pools and other natural features. Our 22.5 acre zoo is the second largest in New Mexico, and the animals are second to none. The zoo is a great place for the entire family. The Hillcrest Zoo is open Tuesday through Sunday from 9 a.m. to 5 p.m. Gates close at 3:30 p.m. Admission costs are: $3 for adults, $1.50 for children and $2.50 for seniors. Children age 2 and under are free.