Boo At The Zoo 2024 Philadelphia. With the gates closing at 3 p.m. Atlanta’s favorite fun family halloween festival returns on saturdays and sundays, october 21, 22, 28 and 29, 2023, at boo at the zoo presented by georgia.

With the gates closing at 3 p.m. Philadelphia — the philadelphia zoo is bringing back boo at the zoo just in time for the halloween season.