The three La Manga beaches that closed on Monday, July twenty-first due to a suspected sewage spill have reopened after tests confirmed no faecal or chemical contamination. The Region of Murcia’s Public Health department conducted analyses, clearing the water for bathers. The red flags that prompted the closure have been removed, but swimmers are advised to exercise caution due to choppy sea conditions.

The stain, which appeared around twenty metres from the shoreline and later spread over two kilometres, was initially believed to be sewage. However, it has been described as a thin surface layer that did not cloud the water. Estíbaliz Masegosa, San Javier’s councillor for Tourism, confirmed the results were within public health parameters.

According to Cartagena’s maritime captain, Óscar Villar, investigations are ongoing to determine the source of the discharge. Other possibilities include bilge water or food-based substances released by vessels under regulated conditions. Jet skis and boats were deployed to disperse the surface slick, while local police drones monitored its development.

Though the beaches are officially safe for bathing, yellow flags have been raised at various points along La Manga to warn swimmers of increased wave activity, particularly affecting vulnerable groups such as children and the elderly. Authorities continue to emphasise safety as conditions in the water stabilise.