Twyfelfontain is an impressive collection of rock carvings found on a hill in central Namibia. It was extremely hot on the day I visited and the climb in the beating sun (there is very little shade and it's steep) was tough. I would therefore recommend water, suncream, sunhat and visiting as early or late in the day as possible.

The carvings are incredible. Unlike some ancient rock paintings, it's very easy to distinguish which animals are which. Lots of iconic creatures feature, including an elephant, giraffes, ostrichs, a lion and gemsbok. Some of these are no longer found in the immediate area around the hills, and there is also an image of a seal which indicates the people had access to the coast, a long way off.

The site is not very developed and was fairly quiet when we visited. There were no signs of degradation or abuse and we were guided at all times by a well informed guide. Given its out of the way location I assume visitor numbers are probably still low compared to many World Heritage Sites. I found it worthwhile visiting, although I wouldn't go to Namibia solely to see this. Combined with the Skeleton Coast, desert, or a safari though it is worth a look.