Currently, the mobility of humans between continents is increasingly common. The world is sometimes referred
to as a global village, and travels to tropical countries are more and more popular. Many Polish citizens
travel every year to the tropics, and the vast majority of them have no knowledge of health-related risks associated
with their country of destination. That fact translates into the necessity to draw attention to travel-related
problems and to a professional attitude that can prevent many diseases, disability and the dangerous spreading
of diseases in a society, and even patients’ death. Key words: rehabilitation, aquatic environment, physical
properties of water.