The lagoon is a 'doline' or sinkhole, created by the collapse of an underground cave roof.
The water inside the lagoon is fed by an underwater passage that connects directly to the open Mediterranean.
The lagoon is situated within the L-Ahrax tal-Mellieha headland, a designated protected area for local flora.
During the summer, the sunlight angle hits the bottom of the pool through the top opening, creating intense turquoise water illumination.
Coral Lagoon is a natural sea cave located on the northern tip of Malta near the L-Ahrax tal-Mellieha coastline. It is characterized by a collapsed cavern roof that creates an open-air, circular pool connected to the Mediterranean Sea via a narrow underwater tunnel. The lagoon is part of a protected marine environment featuring limestone cliffs and vibrant blue water. Visitors can access the water through the tunnel by swimming or kayaking from the open sea. The geological formation is a sinkhole that remains partially enclosed, shielding swimmers from direct open-sea currents. It is a popular site for snorkeling and free-diving due to its depth and clarity. The surrounding terrain is rough, rocky, and consists primarily of uneven limestone surfaces.
From the edge of the circular opening looking directly down into the pool.
Wear sturdy water shoes as the surrounding limestone is sharp and uneven.
Only attempt to swim through the tunnel if you are an experienced swimmer, as currents at the tunnel entrance can be strong.
Bring a waterproof camera or dry bag for gear, as there are no facilities or lockers on-site.
Do not attempt to dive from the high cliffs into the lagoon; the depth can be deceptive and the entry point is narrow.
Practice 'leave no trace' principles; do not remove rocks or disturb marine life in this protected environment.
