Concrete Coral’s cement cars.
A fully inhabited Concrete Coral car.
Heart of Okeanos, a giant replica of a blue whale’s heart.
Renderings of the planned Miami Beach Star, yet to be submerged.
Part of the 56-piece cement starfish sculpture.
The ReefLine is an ambitious seven-mile-long underwater public sculpture park and artificial reef project, currently under construction 600 feet off the Atlantic coast of Miami Beach. It begins near 4th Street in South Beach and will extend as far north as Bal Harbour. The installations are submerged at a depth of around 15 to 20 feet and are intended to combine art, science, and conservation, using large-scale artworks to create marine habitats and to aid coral restoration. They will also boost biodiversity and climate resilience, as well as forming a snorkeling and diving trail.
The first permanent installation was deployed in late 2025: Concrete Coral by Leandro Erlich comprises 22 life-sized car sculptures, seeded with native corals and arranged in a submerged traffic jam. Later this year it will be joined by The Miami Reef Star by Carlos Betancourt and Alberto Latorre, a massive formation of 56 3D-printed concrete starfish, and Heart of Okeanos by Petroc Sesti, a giant sculpture modeled after the heart of a blue whale.
Further sculptures will be installed over the next 10 years. However, nature itself will “complete” the work. Scientists estimate it will take three to five years for seeded corals to “bloom” and begin to cover each new work, attracting marine flora and fauna and acting as a magnet for fish and a haven for biodiversity.
