Irvine Halloween Events 2026: Monster Splash Returns to Woollett Aquatics Center Oct 24

Monster Splash is back at Irvine's William Woollett Jr. Aquatics Center on Saturday, October 24, from 1 to 4 p.m.: a poolside Halloween party with inflatable obstacle courses, diving boards, trick-or-treating booths, and face painting. Tickets are $15 at the door for kids 17 and under, and adults get in free.

If you're hunting for Irvine Halloween events in 2026, this one is easy to overlook next to the bigger Great Park crowds. I like it for exactly that reason. It's a City of Irvine event, it's built for kids, and it's a different way to spend a Saturday afternoon than another lap around a trick-or-treat street.

What is Monster Splash?

Monster Splash is the City of Irvine's Halloween party at the Woollett Aquatics Center, billed as "Tricks, Treats and Poolside Fun." Per the city's event page, kids can take on inflatable obstacle courses, show off their skills on the diving boards, visit trick-or-treating booths, and get Halloween-inspired face painting. Costumes are encouraged.

When is Monster Splash 2026, and what does it cost?

Saturday, October 24, 1 to 4 p.m. Presale tickets ($12 for children 17 and younger) ran through October 18, so they're gone now. Tickets at the door are $15 for children 17 and younger. Adults are free.

One thing worth knowing before you go: the city says that because of ongoing construction at the aquatics center, this year's event is on a smaller scale with a modified selection of activities. If you went in past years, set your expectations accordingly. The center is in the middle of an expansion project, which is a good sign for the neighborhood in the long run, even if it trims the party this year.

Tips for going with kids

A few practical notes from the city's listing and from how these things usually go:

• Check the city's event page before you head over for the latest on activities, since the lineup is modified this year.
• Costumes are encouraged. Since it's a pool event, think about what can get wet.
• It's a three-hour window, so arriving early gets kids more time on the obstacle courses.
• Bring cash or a card for the door price, since presale has closed.

Why events like this matter when you're choosing where to live

I talk to a lot of families deciding between Irvine villages, and the question that comes up more than almost any other is "what's there to do, and does it feel like a community?" Events like Monster Splash are part of the answer. Irvine's city-run programming, from aquatics to the Great Park, is a real part of what people are paying for here.

If you're considering a move to Portola Springs or the Great Park neighborhoods, take a look at our Portola Springs guide and Great Park guide for a feel for what daily life looks like in each village.

Frequently Asked Questions

When and where is Monster Splash in Irvine?

Saturday, October 24, 2026, from 1 to 4 p.m. at the William Woollett Jr. Aquatics Center in Irvine.

How much are Monster Splash tickets?

At the door, tickets are $15 for children ages 17 and younger, and adults are free. Presale tickets ($12) ended October 18.

What activities are at Monster Splash?

Inflatable obstacle courses, diving boards, trick-or-treating booths, and Halloween face painting, with a smaller, modified lineup this year due to construction.

Can kids wear costumes?

Yes. The city encourages costumes.

Thinking about buying or selling in Irvine?

Whether you're early in the process or just curious what your home is worth, I'm always happy to talk it through, no pressure. You can reach out here or get a quick home valuation.