Hallow-Reef
Hallow-Reef
October 25, 26 & 31, 2025 | 10:00 AM - 8:00 PM
Shark Reef Aquarium’s Hallow-Reef will return for 2025 at Mandalay Bay. The aquarium’s exhibits and tunnels will transform into spooky chambers and corridors with trick-or-treaters, costumes and jack-o-lanterns. Guests (and ghouls) can celebrate the Halloween season while exploring unique creatures of land and sea.
- Free candy/Trick or Treating to all children 12 and under
- Educational and fun activities for kids of all ages in the classroom from 10 AM to 4 PM
- $5.00 Admission to all children ages 5 -12 in costume (Shark Reef Only)
- Must be accompanied by a ticketed adult.
- Reservations Recommended and discounted tickets will be available at the Shark Reef Box Office
- Discounts are not available online
- Aquarium will be decorated from Saturday, October 25 to Friday, October 31 but activations and discounts will only be on the dates above.
Vitalant Blood Drive
Friday, October 31, 2025 | 9:00 AM - 3:00 PM
- Room Location: Azure
- All donors will receive one free admission to Shark Reef Aquarium (valid until December 12, 2025) and complimentary parking on Friday, October 31.
- To make a blood donation appointment, please visit here.