Halloween Events for Kids Near Me: Aquarium of the Bay Fish or Treat

Kids 12 and under in costume get free general admission at Aquarium of the Bay on October 31 and November 1, 2026, during its annual Fish or Treat celebration at PIER 39. Divers carve pumpkins underwater from 1pm to 2pm both days, and the river otters get pumpkins at 2pm. For San Francisco parents searching halloween events for kids near me, it is a compact, indoor Halloween plan at the corner of The Embarcadero and Beach Street.

Aquarium of the Bay marked 30 years with a celebration in April 2026. It is a nonprofit and a Smithsonian Affiliate, and its focus is narrower than a typical aquarium: the animals and habitats of San Francisco Bay and its watershed, which it sums up as from Sierra to the Sea. The city has certified it as a Green Business.

That local focus is what makes it good for Halloween with kids. Instead of tropical reefs, children walk through tunnels under sevengill sharks, bat rays and swirling schools of anchovies, touch sea stars and anemones, and watch four North American river otters. The aquarium estimates a full walk-through at an average pace takes about 90 minutes, a realistic attention span for a costumed six-year-old.

Beyond the galleries, the aquarium runs school programs, a program called the Gills Club and a lecture series. For Halloween weekend, though, families come for three things: the tunnels, the touch pools and the otters, and the schedule below is built around those three stops.

The headline event happens from 1pm to 2pm on both Saturday and Sunday. Aquarium divers carve pumpkins underwater inside the Ray & Stephanie Lane Nearshore Tunnel, and families watch from the walkway as the jack-o'-lanterns take shape among the fish. Children who have only carved pumpkins on a kitchen table tend to find this baffling in the best way.

Get into the tunnel by 12:45pm. Everyone who arrived for the free costume admission wants a spot at the glass, and the tunnel is the narrowest part of the building. Small kids see best from a parent's shoulders or from the front edge. After the carving, the finished pumpkins stay in the habitat, so latecomers still see the results.

At 2pm both days, keepers give the river otters pumpkins as enrichment, which means the otters roll, chew and wrestle them in the water. It is the shortest and most chaotic show of the weekend, and the one most likely to make toddlers laugh. Head straight from the tunnel to the otter habitat once the carving wraps up.

On Saturday, October 31, only, a trick-or-treat candy station adds a sweet stop inside the aquarium. Sunday has the same carving and otter times but no candy, which makes November 1 the calmer day for children who are already overloaded from trick-or-treating the night before. If your kids care most about the otters and the carving, Sunday is the smarter choice.

The Halloween offer is simple: a child 12 or under who is wearing a costume gets free general admission on October 31 or November 1, 2026. It applies to general admission only, and the aquarium notes that limitations apply, so the adults in the group still pay. Put the costume on before you arrive; a hat in a backpack will not count.

At the door, general admission is $28.25 for adults 13 to 64, $20.25 for children 4 to 12 and $24.25 for seniors 65 and over. Online prices add a 6% web service fee, bringing an adult ticket to $30.48, and the aquarium uses peak pricing on various days. EBT, SNAP and Medi-Cal cardholders can buy up to four $5 tickets through Museums for All.

The F-Line historic streetcar runs along Market Street and The Embarcadero; ride it inbound toward Fisherman's Wharf and get off at The Embarcadero and Beach Street, and the aquarium is directly to your right just past the pier entrance. From BART, exit at Embarcadero Station toward the Ferry Building and catch the F-Line out front. A valid Bay Area transit pass or transfer gets $2 off adult admission and $1 off child or senior admission.

Drivers can park in the PIER 39 Garage, whose entrance is at 2550 Powell Street, across from the pier's entrance plaza; that number is the garage, not the aquarium. One note for strollers and wheelchairs: the aquarium's exterior elevator is currently out of service, so take PIER 39's elevator, exit on level 2 and walk through the PIER 39 aquarium gift shop to the main entrance.

Plan for holiday closures if you come back later in the season: the aquarium closes early, at 3pm, on November 26 and December 24, with the last ticket sold at 2pm, and it is closed on December 25. On Sunday, November 8, the aquarium also holds an Access Hour, a quieter session for visitors who prefer a calmer experience, which suits children who find crowds hard.

Fish or Treat is best for kids from about three to ten who like animals more than scares. Grandparents appreciate that nearly everything is indoors and on one route, and parents of babies can push a stroller through the tunnels. Teenagers who want a real fright will be bored here, and their free admission ends at age 12 anyway.

Skip the late afternoon. The aquarium is open 10am to 5pm with last entry at 4:30pm, and by then the costume crowd has thinned but so has the energy. Arrive around noon, see the touch pools and otters first, hold your tunnel spot at 12:45pm, and finish by 3pm, leaving time to walk the pier before the fog rolls in.

Address: Aquarium of the Bay, PIER 39, The Embarcadero and Beach Street, San Francisco, CA 94133; the aquarium lists no street number in its official address and sits at the foot of the pier, while 2550 Powell Street belongs only to the PIER 39 Garage across the plaza. Fish or Treat: October 31 and November 1, 2026, with underwater pumpkin carving from 1pm to 2pm and otter pumpkin enrichment at 2pm; the candy station runs October 31 only. Hours: 10am to 5pm daily.

Admission at the door is $28.25 adults and $20.25 children 4 to 12, and costumed children 12 and under get in free on both Halloween dates. For an evening add-on with older kids, Blue & Gold Fleet runs a Halloween BOOs Cruise from PIER 39 on October 30 and 31 at 6:30pm, sailing under the Golden Gate Bridge and around Alcatraz with prizes for the best costumes.