Sunstroke, sunburn and dehydration are serious threats in spring and summer. Therefore hats, sunblock and a sensible attitude are needed to ensure that your holiday is not spoiled by the severe climate.
Scorpions, the most prevalent of which is the poisonous stinging type, are common in summer. They climb under anything left lying on the ground, so care must be taken when lifting or moving objects. It is a good idea to keep your tent securely zipped to prevent scorpions seeking refuge in your sleeping bag or under your pillow.
All life forms in this desert are opportunistic feeders, and after rain the mosquitoes arrive and become a nuisance.
No bilharzia is found in the Orange River.
Swimmers must however take care as the river is often deceptively placid and has claimed many lives over the years.