Formiche di Grosseto, Rocky archipelago in Tuscan waters, Italy
The Formiche di Grosseto are a group of three small rocky islets off the Tuscan coast, within the Tuscan Archipelago National Park. The islets rise sharply from the sea with little vegetation on their surfaces, as the rock faces meet the water almost directly.
In 1901, a lighthouse was built on the largest of the three islets to improve safety for ships passing through this stretch of sea. A few decades later, the structure was upgraded to keep pace with growing maritime traffic in the area.
Among sailors, the Formiche di Grosseto are known as a reliable waypoint when crossing between the mainland and the wider archipelago. Those who approach by boat can watch seabirds nesting on the rocks, undisturbed by human presence.
The islets are only reachable by boat, and sea conditions tend to be most manageable from spring through autumn. Anyone planning a visit should check in advance whether access to the protected zone requires a permit.
Just below the surface, the seabed around the islets drops sharply within a short distance, forming steep underwater walls. These walls attract divers who find coral formations and other marine life rarely seen in shallower waters nearby.
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