It is impossible for human beings to walk on the surface of water. Yet some creatures can do so by means of the special body structures that Allah has given to them. For example, an insect species called the pond skater walks on water by pressing its thin, long legs into a kind of elastic skin on the surface of the water. As the legs of the insect depress the water, a small hole is formed on the surface. This way the insect spreads its body weight over quite a wide area.
Observation and examination reveal that the legs of the pond skater do not break the surface of the water. In other words, its feet do not enter the water. Therefore, the pond skater is able to walk on the surface while other creatures cannot.