Dust can be a problem for cameras, zip camera bags are a good idea. There are very few of the health problems in Namibia that are experienced elsewhere in Africa. There is no risk in the south of Namibia, low risk around Waterberg and high risk in the northern regions. Tap water throughout the areas you will visit is clean to drink. This applies to all campsites, hotels and restaurants.
Drinking water is always available from the vehicle.
We would recommend bringing SA Rand. There is also a bank available at the airport, on arrival in Windhoek. All rights reserved.