Ahoy, St. Louis! The St. Louis Aquarium Pirates and Pumpkins 2025 celebration is back and bigger than ever. From September 19 through November 2, 2025, families can dive into a world of pirates, pumpkins, and Halloween fun at Union Station, blending marine magic with swashbuckling seasonal excitement.
A Nautical Halloween Adventure at the St. Louis Aquarium
Included with general admission, the Pirates and Pumpkins event transforms the aquarium into a nautical Halloween wonderland. Visitors will discover artistic pumpkin carvings, award-winning giant pumpkins, and playful pirate displays—perfect for fall photos and family fun.
The venue will feature ghostly ships with smoking cannons, treasure caves, and interactive scenes that combine humor, imagination, and St. Louis charm. It’s a one-of-a-kind autumn experience that merges marine education with creative seasonal décor.
Daily Activities and Interactive Experiences
Throughout the event, guests can explore themed attractions designed to educate and entertain children and adults alike.
Event Dates and Hours:
- September 19 – November 2, 2025
- Sunday–Thursday: 9 a.m. – 5 p.m.
- Friday–Saturday: 9 a.m. – 6 p.m.
Featured Activities:
- Self-Guided Treasure Hunts: Follow clues, solve riddles, and learn pirate lingo as you explore the exhibits.
- Pirate Bingo: Enjoy an interactive game while touring the aquarium’s aquatic habitats.
- Underwater Pumpkin Carving: Watch scuba divers carve pumpkins underwater in the Shark Canyon habitat every Saturday and Sunday at 1:15 p.m. during October.
These family-friendly experiences bring together creativity and education, ensuring every visitor leaves with both memories and new discoveries.
Trick-or-Treat Nights at St. Louis Aquarium Pirates and Pumpkins 2025
Families looking for an evening adventure can attend the Pirates and Pumpkins Trick-or-Treat Nights, held on select dates for an extra splash of Halloween excitement.
Dates: October 17, 18, 24, and 25, 2025
Time: 5:00 p.m. – 7:00 p.m. (Last entry at 6:15 p.m)
Admission: $30 for adults, $25 for children (ages 3–12), with discounts for aquarium members.
During these evenings, young buccaneers can enjoy:
- Walking the Plank & Treasure Digging — Test your courage and uncover hidden prizes.
- Pirate Hat Creation — Design your own pirate hat to complete your costume.
- Candy Stations — Collect treats from costumed pirates throughout the aquarium.
These limited-time events offer families a safe, creative, and memorable Halloween experience unlike any other in St. Louis.
Where to Find the St. Louis Aquarium Pirates and Pumpkins Celebration
The St. Louis Aquarium is located at Union Station, 201 S. 18th Street, St. Louis, MO 63103. Admission to Pirates and Pumpkins is included with general entry, while Trick-or-Treat Nights require separate tickets.
Parking is available on-site, and guests are encouraged to purchase tickets online in advance to secure their preferred visit time.
Conclusion
The St. Louis Aquarium Pirates and Pumpkins 2025 event perfectly combines fall festivity, family fun, and educational adventure. Whether watching divers carve pumpkins underwater or exploring treasure-filled pirate scenes, visitors of all ages will discover something magical around every corner.
Don’t miss your chance to celebrate Halloween with a splash—September 19 through November 2, 2025, only at the St. Louis Aquarium at Union Station.
