YOUR NEXT GOOD PLAN
Aquarium of the Bay: Fish or Treat
WaterfrontOct 31 – Nov 1 · Choose a sessionPaid general admission · eligible costumed kids promotion
Organizer image · event not pictured
Bring a costume for an aquarium Halloween weekend with seasonal animal activities.
The plan
Bring a costume for an aquarium Halloween weekend with seasonal animal activities.
Before you go
October 31–November 1. Kids 12 and under in costume may qualify for free general admission; read all adult-ticket and promotion limits.
Location: Aquarium of the Bay · PIER 39, San Francisco, CA 94133
Source checked: 2026-10-30. Hours, pricing, availability, and outdoor conditions can change. Confirm details with the organizer.