Celebrate New Year's Eve with Fido during a special dog-friendly day at the zoo! Explore the grounds together, enjoy tasty treats and snap festive photos while making memories with your pup. Dogs must be at least 4 months old, current on required vaccinations with proof provided, and kept on a non-retractable leash no longer than 6 feet. One dog per adult is allowed. Some areas, including indoor restaurants, animal encounters and aviaries, are off-limits to dogs.