The results of individual observations and several studies confirm the frequent complaints of patients with Parkinson’s disease (PD) about difficulty or inability to swim. Difficulties moving the limbs, coordination and maintaining the horizontal position during swimming appear to be the main problems that prevent normal swimming. Further studies are needed to assess the frequency of swimming disorders in PD and the mechanisms of their development. Patients with PD must be educated about the potential risk of drowning and the need to evaluate and carefully monitor their swimming skills before going into deep water.