The arrival of summer heat leads many to seek refreshment at the waterfront, as the proximity to nature is always appealing. However, natural waters, such as rivers, lakes, or mining ponds, are not only popular for their refreshing experience but also come with numerous potential dangers. Swimming in non-designated bathing areas can be particularly risky, as water pollutants and pathogens can cause serious health problems. It is well known that fungal infections and complaints related to chlorine are common around swimming pools, but natural waters are not free from risks either. Sewage, wildlife droppings, and other contaminants can all contribute to the deterioration of water quality. Bathing in such waters…