Miami Seaquarium

Miami Seaquarium
Main entrance
Interactive map of Miami Seaquarium
25°43′59″N 80°09′56″W / 25.733°N 80.165525°W / 25.733; -80.165525
Date openedSeptember 24, 1955 (1955-09-24)
Date closedOctober 12, 2025 (2025-10-12)
LocationVirginia Key, Miami, Florida, US
Land area38 acres (15 ha)
Annual visitors500,000
OwnerMiami-Dade County
ManagementThe Dolphin Company (operator/lessee)
Websitemiamiseaquarium.com

The Miami Seaquarium was a 38-acre (15 ha) oceanarium located on the island of Virginia Key in Biscayne Bay, Miami-Dade County, Florida, located near downtown Miami. The seaquarium closed after 70 years of operation on October 12, 2025.

Founded in 1955, it was one of the oldest continuously operating oceanariums in the United States. In addition to marine mammals, the Miami Seaquarium housed fish, sharks, sea turtles, birds, and reptiles. The park offered daily presentations and hosted overnight camps, events for boy scouts, and group programs. Over 500,000 people visited the facility annually. The park had around 225 employees, and its lease payments and taxes made it the third-largest contributor to Miami-Dade County's revenue.