April 21st Events & Coupons

Auctions, Pop Ups and Marketplaces See All

Netflix Bites MGM Grand Las Vegas
Pop Ups and Vendor Markets | Feb 11, 2025 - Feb 20, 2026
United States > Nevada > Las Vegas > > 89109

Conventions, Live Shows and Fairs See All

Jaws: The Exhibition at The Academy Museum Celebrates 50th Anniversary of Iconic Killer Shark
Memorabilia Exhibition | Sep 14, 2025 - Jul 26, 2026
United States > California > Los Angeles > > 90036
Barbie to Anna Karenina: The Cinematic Worlds of Sarah Greenwood and Katie Spencer Exhibition at the Academy Museum
Memorabilia Exhibition | May 23, 2025 - Oct 25, 2026
United States > California > Los Angeles > > 90036

Milestones See All

Jaws: The Exhibition at The Academy Museum Celebrates 50th Anniversary of Iconic Killer Shark
Memorabilia Exhibition | Sep 14, 2025 - Jul 26, 2026
United States > California > Los Angeles > > 90036

April 21st In History

Auctions, Pop Ups and Marketplaces See All

Windy City Pulp and Paper Convention
Comic Cons | Apr 21 - Apr 23, 2023
United States > Illinois > Lombard > > 60148

Contests and Giveaways See All

Enter the My Nintendo Universal Epic Universe Super Nintendo World Sweepstakes
Gaming Contests | Mar 4 - Jun 30, 2025
United States > Florida > Orlando > > 32819

Firsts, Starts and Openings See All

Little Richard: I Am Everything
Television/Streaming Premiere | Apr 21, 2023
Judy Blume Forever
Television/Streaming Premiere | Apr 21, 2023

Fundraisers See All

Interviews See All

Narratives See All

Verne Troyer
Deaths | Apr 21, 2018
Sophie Rundle
Birthdays | Apr 21, 1988

Product Releases See All

Show and Movie Releases See All

Social and Cultural Events See All

FreakNik
Concerts | Apr 19 - Apr 21, 1996
FreakNik
Concerts | Apr 21 - Apr 23, 1995

SeaWorld San Diego Howl-O-Scream | Haunted House Experiences | Sep 29 - Oct 31, 2023

SeaWorld San Diego Howl-O-Scream

Haunted House Experiences | Sep 29 - Oct 31, 2023

Seaworld San Diego

United States > California > San Diego > > 92109

Howl-O-Scream at SeaWorld San Diego is coming to transform the peaceful theme park you once knew into something sinister. When night falls and a carnival of horrifying creatures surrounds you, just try to put on a happy face. Evade angry haunts as they rampage through scare zones. Seek shelter indoors, only to find you’ve entered a house of horrors. Quench your thirst for fear with fiendishly delicious cocktails, beer, and spirits. Feel the monstrous electricity of live entertainment. Dance the night away and deepen the thrills with a nighttime coaster ride.

Haunted Houses

Hear every bloodcurdling shriek. Feel every spine-tingling terror. Get ready for the haunted houses of SeaWorld’s Howl-O-Scream. There’s no turning back as you brave dark passageways and round dimly lit corners, hoping you can avoid what’s lurking in the depths. The legends are true, the fear is real, and the only way out of these houses is through.

Scare Zones & Roaming Haunts

There are no safe zones. There are no places to hide. Stay alert and be prepared for anything, because you never know what’s waiting up ahead (or creeping up behind you) during SeaWorld’s Howl-O-Scream.

Terrifyingly Awesome Entertainment

Become maddened and mesmerized by raucous, high-energy live entertainment. You’ll also find zombie DJs and party zones that are perfect for a dance break between frights.

Thrilling Rides & Coasters

Have you ever ridden Arctic Rescue, Emperor, Electric Eel, or Journey to Atlantis in the dark? It wouldn’t be a SeaWorld visit without a ride or two, but it wouldn’t be Howl-O-Scream without a dose of nighttime terror.

Sinister Cocktail Bars

Toast the terror with creepy cocktails, restless spirits, and more at several uniquely themed haunted bars throughout the park. After nightfall, every moment of fun comes with a splash of fear.