Decades ago, large swells were common only at specific times of the year but for some time now the phenomenon became much more common and intense even affecting not only the city of Vina del Mar but also various regions of the country. All these abnormal events are attributable to climate change, this year increased with the El Niño phenomenon and it is feared that, if the trend continues, the coming years will present a greater amount of large surges. By 2015 there was a record of 45 events and 2016 has kept the average. On the other hand, there have been accidents, even deaths, by the carelessness of the people. So the authorities again called on people to not be reckless and follow established safety standards, avoiding transit through rocky areas and beaches not enabled for bathing. It is also prohibited water activities without authorization.