Regular hours: 9:30 am – 6 pm
Last entry at 5 pm

Halloween at the Aquarium

A white wave shape.
Saturday, October 31, 2026

Halloween at the Seattle Aquarium

Celebrate spooky season at the Ahhhhquarium!

Trick or treat around our habitats to snatch some candy or a non-snack prize while learning about the mesmerizing (and sometimes mysterious) marine world. Costumes are welcome!

Remember, your ticket gets you access to all event activities, daily activities and our three buildings—including the Ocean Pavilion. And you’re supporting important marine conservation work. Thanks for being an ocean champion!

A small shore bird in a grassy and sandy habitat at the Seattle Aquarium walks behind a skull decoration placed in the habitat as enrichment and part of the Aquarium's annual Halloween celebrations.

Prepare yourself for a frightfully fun day. Join us for a spooktacular story time. Watch our multi-talented divers carve pumpkins underwater and vote on your favorite creations. See master pumpkin carver Russ Leno in action as he transforms a giant pumpkin into a gourd-geous work of art.

Up for a challenge? Take part in our bone-chilling scavenger hunt featuring x-rays of some familiar faces at the Aquarium seen in a curious new light.

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GiveBIG to conservation in action.

This year, we’ve set a GiveBIG goal of $70,000, and thanks to the generous support of Al & Pat Friedrich, Clint & Barb Bennett, Marshall & Janice Brumer, Michael Klein & Catherine Melfi, and an anonymous donor, every gift will be matched up to $30,000, doubling your impact.

Adults-only special event!

Thursday, September 10 from 5:30–8:30pm

Join us one evening each month when the Aquarium remains open late just for adults 21+

Today only, your gift will be matched dollar-for-dollar up to $25,000 thanks to the generosity of donors Betsy Cadwallader, J & Tim, and Jess & Andy Peet. Help us reach our $50,000 goal!

End the year with a gift to the ocean.