Malaria is not prevalent in Graskop, South Africa, as the city is located outside of typical malaria risk zones. The town is located at higher elevations (1,400 meters above sea level), which contributes to a cooler climate that is less favorable for malaria-carrying mosquitoes. However, travelers exploring nearby regions such as Kruger National Park should take appropriate precautions as there is a higher risk of malaria in these areas.