ISAB Syracusae Openwater 2026

In 213 BC, during the Second Punic War, the Roman fleet attempted to blockade the city by sea, only to be thwarted by the ingenious defensive machines of Archimedes. The very waters that once hosted this ancient naval struggle now serve as the backdrop for the ISAB Syracusae Openwater, a race that demands the same focus and respect for the environment as those historic mariners held for the Sicilian coast. Swimmers today do not face ballistae, but they do navigate the protected corridors of the Area Marina Protetta del Plemmirio, a stretch of coastline where the Ionian Sea meets limestone cliffs and submerged archaeological remnants. The race, organized annually by ASD Trirock, returns on July 26, 2026, offering distances of 5km, a mile (1852m), and a 500m kids' course.

The race day environment

The competition is staged at Lido Varco 23, a strategic point that provides direct access to the sea’s most sheltered sections within the reserve. Because the coastline here is divided into three distinct protection zones, the race path is carefully mapped to stay within authorized areas, ensuring that swimmers move through the most preserved sections without disturbing the local marine flora or the nesting sites often found along the Capo Murro di Porco promontory. On race day, the water temperature in late July typically sits in the mid-20s Celsius, requiring no wetsuits under standard conditions, though the decision rests on final water temperature readings closer to the event. The start times are structured to avoid the peak of the thermal winds that develop along the eastern Sicilian coast, allowing participants to utilize the calmer morning currents before the afternoon breeze creates chop.

Navigating the reserve

As you sight your path, you are effectively tracing the same route used by local fishing boats for centuries to avoid the shoals near Punta Milocca. The seabed here drops sharply, and while the water is known for high visibility, the primary challenge is the subtle drift caused by the Ionian currents that funnel between the southern tip of the peninsula and the open sea. By keeping the coastline to your right during the long-distance segments, you can observe the transition from shallow sandy patches to the deep blue of the marine park’s core. The event serves as a central fixture of the Grand Prix Sicilia Openwater, drawing swimmers who prefer the technical challenge of navigating open marine currents over the static environment of a sheltered bay.