Miami Seaquarium to Transform into Marina and Aquarium Complex

UPDATE: The Miami Seaquarium closed its gates for the last time on October 12, 2025, after 70 years as a tourist attraction, but a new era is set to begin under developer David Martin. His ambitious plans will transform the iconic waterfront site into a thriving marina and aquarium complex, bringing significant changes to Virginia Key.

Just announced, Martin intends to invest over $100 million to revitalize the Seaquarium property. The redevelopment includes a state-of-the-art aquarium, a baywalk promenade, and a restaurant complex themed around Fishermen’s Village. The centerpiece of the project will be a large marina with floating docks, piers, and facilities for smaller boats, aimed at attracting visitors and enhancing the local economy.

During a recent tour, Martin emphasized the marina’s potential to be a significant revenue driver, asserting, “The marina provides a certain foundation to the business plan that helps you be creative and innovative.” His vision is to create a bustling entertainment hub while preserving the cultural heritage of the Seaquarium.

In his plans, Martin aims to cover the iconic gold geodesic dome over the sea-lion theater, converting it into an all-weather event space. He also envisions high-end dining options alongside casual eateries, catering to a diverse clientele. “We’ll have some cool, more chef-driven concepts,” he noted, indicating a shift towards upscale dining experiences.

As the Seaquarium prepares to relocate its remaining marine life, including dolphins and sea lions, Martin’s redevelopment will proceed under the lease of Miami-Dade County. A bankruptcy judge is set to consider Martin’s proposed $23 million bid to take over the lease from the Seaquarium’s bankrupt parent company, the Dolphin Company. Approval from the County Commission is also needed to finalize the transfer.

The project is garnering support from key officials, including Miami-Dade Mayor Daniella Levine Cava, who previously sought to close the Seaquarium due to alleged animal mistreatment. Martin’s track record in securing county support for profit-driven ventures positions him favorably for approval.

“Martin’s plan represents the best chance for the Dolphin Company to raise cash from this distressed operation,” bankruptcy lawyers stated in court filings. Martin has a history of successful developments in Miami, indicating a strong possibility for the project’s approval.

While the redevelopment promises economic benefits, it must navigate regulatory hurdles, including obtaining environmental permits for the marina construction. Martin is already consulting with environmental specialists to ensure low-impact development that protects local ecosystems.

Martin’s vision doesn’t abandon the Seaquarium brand; instead, it aims to incorporate educational elements, including a nature center and potential partnerships with local academic institutions for marine conservation efforts. “We’re going to explore—hopefully—after our motion gets approved,” he said, referring to discussions with the University of Miami.

As he prepares to take over, the focus will be on creating an aquarium that captivates visitors without the presence of marine mammals. “We’ve been studying aquariums across the country and around the world,” Martin stated, expressing his commitment to designing an immersive experience for families and children.

The redevelopment of the Miami Seaquarium into a vibrant marina and aquarium complex marks a significant shift in its legacy. As plans unfold, the community eagerly anticipates a new chapter for this historic site, promising to honor its past while paving the way for future generations.

Stay tuned for updates on this developing story as Miami embraces a revitalized waterfront experience.