Mermaids and trick-or-treaters at the Under the Sea event

Halloween Nights Under the Sea

Name: Halloween Nights Under the Sea
Start: 2024-10-25T16:30:00-05:00
End: 2024-10-25T19:30:00-05:00
Location: St. Augustine Aquarium

This spooky, kid-friendly event offers underwater thrills and fun.

Saturdays, Oct. 18 & 25, 2025 | 4:30 p.m. - 7:30 p.m.

Halloween Nights Under the Sea

(904) 429-9777

2045 S.R. 16
St. Augustine, FL 32084

Halloween Nights Under the Sea, hosted by the St. Augustine Aquarium, presents a fin-tastic experience on Saturday, October 18, and Saturday, October 25, 2025, from 4:30 to 7:30 p.m.

Family and friends participate in various fun activities—underwater pumpkin carving, mermaids and their candy chute, cookie decorating, glow tattoos, pumpkin crafts, trick-or-treating, and a Halloween nature trail.

Guests who purchase tickets in advance get the opportunity to feed the fish. Call (904) 429-9777 for more information on this event.

Admission: Adult general admission is $10.00, while children are $5.00. Tickets are available for purchase online.

When: Saturday, October 18, and Saturday, October 25, 2025, from 4:30 to 7:30 p.m.

Where: The St. Augustine Aquarium is located at 2045 State Road 16, St. Augustine, Florida 32084.