A viral trend called the "brown challenge" has led to the closure of numerous swimming pools and waterparks in Spain. This trend involves individuals intentionally defecating in public pools to force them to close. PortAventura World's Caribe Aquatic Park recently evacuated its pools due to this issue. Such incidents require extensive cleaning and testing, leading to prolonged closures. Over 300 pools have reportedly been affected in recent seasons, costing thousands of euros per incident. Health authorities warn of risks like norovirus and Salmonella from contaminated pool water. Identifying perpetrators is difficult due to privacy concerns and lack of ID checks. The article links this trend to Spain's migration policies and the perceived erosion of shared standards. The government's mass amnesty for migrants has drawn criticism. This phenomenon is seen as a primitive assertion of hierarchy and a degradation of public spaces. The situation impacts families, businesses, and tourism, causing frustration among the local population.