Florida Keys

Pennekamp park in the Keys is adding a major attraction. See plans for aquarium

A rendering shows an aerial view of the Discovery Center & Aquarium scheduled to open at John Pennekamp Coral Reef State Park in Key Largo in 2028.
A rendering shows an aerial view of the Discovery Center & Aquarium scheduled to open at John Pennekamp Coral Reef State Park in Key Largo in 2028. Florida State Parks Foundation

America’s “first undersea park,” established in Key Largo in 1960 to protect and celebrate Florida’s coral reef, broke ground this week on a multi-million discovery center and aquarium scheduled to welcome visitors in 2028.

John Pennekamp Coral Reef State Park already attracts hundreds of thousands of people every year who lounge on its beaches, snorkel and dive offshore and paddle through its mangroves. The new complex will bring people in doors to view exhibits and the centerpiece, a 23,000-gallon aquarium devoted to the reef and its inhabitants.

A rendering shows visitors looking at exhibits, including a 23,000-gallon fish tank at the Discovery Center & Aquarium scheduled to open at John Pennekamp Coral Reef State Park in 2028.
A rendering shows visitors looking at exhibits, including a 23,000-gallon fish tank at the Discovery Center & Aquarium scheduled to open at John Pennekamp Coral Reef State Park in 2028. Florida State Parks Foundation

“John Pennekamp Coral Reef State Park is a jewel of Monroe County and the state of Florida, and this new Discovery Center & Aquarium is an incredible investment in our natural resources, our community and our economy,” Monroe County Commissioner Holly Merrill Raschein said in a statement. “Like so many of our residents, this park holds a place in my heart, and I am so proud to support the park and its future.”

The price tag is $52 million, paid for with public and private money, said Tim Linafelt, communications director with the Florida State Parks Foundation.

An artist rendering shows people watching fish in small tanks outside the Discovery Center & Aquarium expected to be completed in 2028 at John Pennekamp Coral Reef State Park.
An artist rendering shows people watching fish in small tanks outside the Discovery Center & Aquarium expected to be completed in 2028 at John Pennekamp Coral Reef State Park. Florida State Parks Foundation

John Pennekamp Coral Reef State Park was established in December 1960 and is named after John Pennekamp, an editor at the Miami Herald, whose columns championed environmental causes like the establishment of Everglades National Park and the protection of Florida’s coral reef, the only living coral reef in North America.

The park also offers hiking trails, more than 40 camp sites and saltwater fishing.

Pennekamp’s grandson, Tom Pennekamp, who is vice president of the park’s foundation board, spoke at Wednesday’s groundbreaking.

State and Monroe County officials pose with shovels and hardhats during a groundbreaking ceremony for a new discovery center and aquarium at John Pennekamp Coral Reef State Park in Key Largo Wednesday, April 22, 2026.
State and Monroe County officials pose with shovels and hardhats during a groundbreaking ceremony for a new discovery center and aquarium at John Pennekamp Coral Reef State Park in Key Largo Wednesday, April 22, 2026. Florida State Parks Foundation

“Some of my fondest memories are of visiting this park with my grandfather,” Pennekamp said. “This is a special place for our family, but it’s also special for the millions of people who have created their own memories and experiences here.”

Renderings released by the foundation show a multi-story, two-building complex that sits on the edge of the marina. A mezzanine area contains smaller tanks of fish, multiple exhibits and the large tank.

The facility will also continue the work of Mote Marine Laboratory scientists who have restored more than 200,000 corals to the reef and continue to work on corals at the park, Linafelt said.

David Goodhue
Miami Herald
David Goodhue covers the Florida Keys and South Florida for FLKeysNews.com and the Miami Herald. Before joining the Herald, he covered Congress, the Environmental Protection Agency and the Department of Energy in Washington, D.C. He is a graduate of the University of Delaware. 
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