Event · STEM & discovery

Halloween Celebration at Aquarium of the Bay

When
Through Nov 1
Where
Aquarium of the BayPIER 39, Embarcadero & Beach St., San Francisco, CA 94133Open in Google Maps ↗
Ages
All ages; kids 12 and under in costume get free general admission
Cost
Kids 12 & under in costume FREE general admission (limitations apply); regular general admission for others.
Organizer
Aquarium of the Bay

Aquarium of the Bay on PIER 39 marks Halloween weekend with its annual Fish or Treat celebration. From 1 to 2 pm on both days, divers carve pumpkins underwater inside the Ray & Stephanie Lane Nearshore Tunnel while visitors watch, and at 2 pm the river otters get pumpkins as enrichment. A trick-or-treat candy station runs on Saturday, October 31 only. Children 12 and under who arrive in costume get free general admission on October 31 and November 1 (limitations apply), making it an inexpensive way to see the bay's sharks, rays and otters. Accompanying adults pay regular general admission.

Visit the official site ↗
Official sources checked2026-10-16

Published details checked online. Contact responsiveness and live booking availability have not been confirmed.

What was checked & what still needs confirmation

Page includes a leftover 'Valid only on Saturday Oct -, 2025' discount template block; main event text says Oct 31–Nov 1, 2026. Adult price not on this page.

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