Nationals from many countries can get tourist or business visas at entry points, but nationals from other countries need to arrange visas in advance. Non-prescription and prescription drugs, registered according to US FDA standards, are available in all towns. Visitors should take standard precautions for common diseases affecting travelers, e.g. diarrhea, as well as other diseases. For more advice, see the CDC or WHO travel advisories. Please take note that the use of malaria prophylactic drugs do not prevent malaria, but only lowers the risk of parasitic infection.
Bottled water is, however, generally available throughout the country.
Visitors should please take into account that water is Namibia's most limiting resource, and that they too can make a meaningful contribution to save water. Showers utilize less water than baths, and taps should not be left running while brushing teeth, washing hands, or shaving. Visitors should please report broken pipes or leaking taps to their host. The Namibian Police have more than 85 police and satellite stations all over the country. Criminal activities and vehicle accidents should be reported at these stations.