#17BARCELONA [Costa Brava]

The approach to S’Agaró reveals the rugged character of the Costa Brava, where the pine-covered hills abruptly descend into the Mediterranean. As you travel from the bustle of Barcelona, the landscape shifts into a series of jagged inlets and golden coves, setting the tone for a weekend where the coastline dictates your pace. This 16.65km event is designed as a two-day compact challenge, split into a 7km opening day and a 10km marathon swim on Sunday, offering a condensed version of the endurance formats usually found in longer circuits.

Historical currents beneath you

While you navigate these waters, you are tracing the path of maritime innovation. The seabed near the port is the spiritual home of the Ictíneo II, the pioneering submarine launched in 1864 by Narcís Monturiol. It was the world's first combustion-powered, air-independent vessel, a technological ancestor to modern underwater exploration. Swimming along this coast, you pass the Torre del Rellotge, a lighthouse built in 1772 that served as a critical reference point for French scientists in 1791 while they calculated the length of the meter. The tower remains a visual anchor for swimmers, standing as a sentinel at the edge of the harbor.

Myth and the marathon route

Local tradition ties these shores to the legend of the 'Barca Nona'. Mythology tells of Hercules searching for the Argonauts after a storm scattered their fleet; he reportedly discovered the wreckage of their ninth ship, the Barca Nona, near the slopes of Montjuïc, marking the site that would eventually become the city. Today’s swimmers experience the dramatic cliffs of this same headland, often looking up toward the Montjuïc Jewish cemetery, a somber reminder of the 1391 persecutions. The environmental history here is equally tangible, with rare discoveries like the 70-kilogram Civil War bomb found near San Sebastián beach in 2019 occasionally reminding support crews of the hidden debris resting on the seafloor.

Race day mechanics

With an entry fee of €750, the logistics are engineered to minimize the friction of travel, providing boat support and safety crews that monitor the coastal currents. The compact format is an entry point for those wanting to test their endurance without the time commitment of a four-day event. For those looking for further challenges, the season includes the 98th Port de Barcelona Crossing in early October, while those seeking an mid-summer test often prepare with the 75th Badalona Swimming Crossing in July. You will finish with an upcycled medal and the physical memory of a route that connects the history of Mediterranean navigation with the physical demand of a 10km point-to-point swim.