With the onset of cold weather, rivers and lakes begin to freeze. Young people rush to the slippery surface of reservoirs, racing on skates or sleds on the icy surface, not thinking about the danger. Boys and girls skate and play on the first, still weak ice, enjoying the fact that it bends and cracks. Adults don't always think about the consequences of being on thin ice either. It is they who, shortening the road, "stuff" the first paths through reservoirs. Using the gentle slopes of the banks and the hardened surface of rivers and lakes, motorists move reservoirs, not taking into account that the facts of evacuation of cars that have fallen through the ice take place every year. With the appearance of the first ice cover, it is impossible to use reservoirs for skiing and crossings. Young ice is thin, not durable and does not withstand the weight of a person, and even more so, automotive equipment. Careless behavior on the ice can lead to sad consequences: getting injured, unexpectedly falling through the ice, to the separation of coastal ice with people and equipment, hypothermia of people, and sometimes death. Despite all the preventive classes held in schools, parents play a primary role in saving the health and life of a child. Their task is to control their children, explain and talk about the danger that a reservoir with weak ice conceals and about the tragedy that can happen to someone who does not comply with the rules of safe behavior in the autumn-winter period. No adult should remain indifferent if he sees children on rivers, lakes during the formation of ice and is obliged to take all measures to prevent trouble.