Copa Brasil de Águas Abertas — Guaratuba

The waters off Guaratuba in late November are defined by the tidal exchange between the bay and the Atlantic, creating localized currents that require steady, rhythmic sighting. Swimmers must anticipate the ebb and flow around the bay mouth, where the interaction of the tide with the coastal shelf dictates the intensity of the water movement against the stroke. November brings stable, temperate conditions, providing a predictable environment for the 1500m, 2500m, and 4000m distances. The water clarity allows for a clear view of the sandy bottom, while the orientation is anchored by the natural topography of the coast. To the north, the Morro de Caieiras rises sharply from the sea, while the Morro do Cristo marks the southern edge of the swimming arc, serving as permanent navigational references for the final approach to the finish line.

Historical and natural landmarks

Navigating this course means crossing a stretch of water with deep ties to the Carijó indigenous groups, who occupied these shores long before the first colonial routes were etched into the landscape. Among these, the Caminho do Ambrósios remains a silent witness to the early penetration of the Paraná interior. Below the surface, the seabed is marked by the presence of ancient sambaquis, massive prehistoric shell middens that lie submerged near the coast, remnants of the region's first inhabitants who relied on the bay's abundant mollusks. Swimmers may catch a glimpse of the dense Atlantic Forest that fringes the bay, a biodiversity hotspot where the red plumage of the guará birds—the namesake of the city—once dominated the mangroves. While the modern Guaratuba Bridge now dominates the horizon as a sleek, cable-stayed connection to the north, the older stone silhouette of the Igreja Matriz de Nossa Senhora do Bom Sucesso remains visible from the water, grounding the race in the city's 18th-century roots. Those seeking a different challenge in the same region might look toward the Circuito Ocean events held in these waters, which provide a varied perspective on the local current patterns. As you pull through the final meters, you are effectively retracing the maritime history of the Paraná coast.