There is going to be a spooky season. Halloween is one of the easiest holidays to get into the swing of things before the official calendar shows it.

Theme parks from Disney World to Legoland are preparing their characters, chainsaws and other props to be used in Halloween celebrations.

Below is a list of Halloween events at major parks in the U.S.

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Make sure you know the rules at the various parks regarding face- covering requirements and what is allowed, too, when it comes to dressing up. You don't want to get to any tricks before you get in the gate.

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Walt Disney World

Disney After Hours Boo Bash (Photo by David Roark/Walt Disney World Resort)

Do you already feel Halloweeny? The Disney After Hours Boo Bash is at Disney World and runs through October 31st. Mickey's Not So Scary Halloween Party will be replaced by the event.

The three-hour event starts at 9 or 9:30 p.m., depending on the date, and ticket-holders will be able to enter the park at 7 p.m.

The event brings the usual spectacle of Disney holiday pageantry, with trick-or-treating throughout the park, cavalcades and characters like Chip and Goofy. The castle will be illuminated for the occasion.

With a limited number of guests allowed in the park during the event, there should be shorter wait times on over 20 popular rides that will remain open after hours.

Legoland

Legoland Florida Resort goes all out with Brick-or-Treat, which is included with regular park admission and comes with meet-and-greets with costumed characters, special LEGO builds and themed shows and Halloween.

Every Saturday and Sunday in October, the Legoland New York Resort will host a variety of trick or treating, dance parties and character meet and greets. The Halloween-themed fun at Legoland California Resort is being held on Saturdays only in October.

Universal Orlando Resort

Jack, the Clown, returns to Halloween Horror Nights 2021. (Image courtesy of Universal Orlando Resort)

In its 30th year in 2021, Halloween Horror Nights (this year called Halloween Horror Nights Icons: Captured Icons ) at Universal Orlando Resort promises to pour on the blood and gore with five scare zones, two live shows and 10 haunted houses set up throughout the park.

There is no place like this, with haunted houses that are themed after shows like The Texas Chainsaw Massacre and Beetlejuice. The event is not recommended for children under the age of 13 due to the fact that many adults have lost their minds at this thing.

There are two new live shows this year, one of which will transform the park's lagoon for a nighttime experience. If you want to shorten wait times in line, you can tack on an express pass.

Universal Studios Hollywood

Universal Studios Hollywood's Halloween Horror Nights: Never Go Alone event is more of a circus for adult fun in the form of haunted houses, characters who pop out at you from nowhere and mazes themed to horror films.

The park's Halloween Horror Nights are free and open to the public.

Halloween celebration at Disneyland (Photo courtesy of the Disneyland Resort)

The Halloween programming at Disneyland begins in September. The Main Street U.S.A. will be adorned with pumpkins carved in honor of Tim Burton's The Nightmare Before Christmas, as well as the haunted mansion.

Oogie Boogie Bash is a Halloween party at the park. In September and October, it includes after-hours access to trick-or-treating trails, parades, and some evenings with fireworks displays.

The Disney California Adventure park mix-in that allows you to enter the park as early as 3 p.m. is one of the ticket options that can be considered.

SeaWorld Orlando

Trick-or-treating at SeaWorld Orlando's Halloween Spooktacular. (Photo courtesy of Seaworld Orlando)

It's included with theme park admission and running weekends from September 18 through October 31 and is a favorite with families looking to up the Halloween spirit.

The Sesame Street friends are going to be giving out treats. The park's decorated trail is a great place to trick or treat during the day. If you want to get in on the trick-or-treating, you have to purchase a bag that is made of recycled material.

Howl-O-Scream, which plays out on 27 nights between September 10 and October 31, is more frightening than Halloween entertainment at night. Scare zones, haunted houses and live shows are on tap, with single night tickets from as low as $21. Admission begins at 6 p.m. and ends at 7 p.m. It's not as frightening as Halloween Horror Nights, but still has a lot of blood and gore.

Six Flags

Six Flags Over Georgia, Six Flags Magic Mountain, Six Flags over Texas, and Six Flags Great America are some of the parks that are putting on Halloween events this year. In September and October, Fright Fest can be found at certain parks. Kids under the age of 12 can trick or treat.

Hersheypark

Hersheypark in the Dark is a great place for families with young kids to get their fill of Halloween fun. The new Candymonium roller coaster in Hershey's Chocolatetown is the park's biggest roller coaster yet. There will be two trick-or-treating trails this year, including in Chocolate World, where free timed reservations are required, and in a new area at The Boardwalk at Hersheypark.