Where Can I See A Black Mongoose in Namibia?

Hi Jon,
I am guessing you probably already know this but Erongo Wilderness Lodge is a regular site within the grounds. I saw one with my group dash across the road on the approachbtrack to the lodge: http://www.wisebirding.co.uk/wp-content/uploads/2017/05/FINAL-Report-NAMIBIA-NOV-2016.pdf
Though I never stayed at the lodge, but certainly worth making a few enquiries with staying there. Good luck!

We just got back from Namibia on Monday, and we saw a pair of black mongoose at Erongo Wilderness Lodge. The chap there (forget his name) told us they’re often spotted on the boulder slopes to the right of the camp (to the right as you’re looking at the camp from outside). So we took the advice of that Phd student you mentioned, and found an excellent spot overlooking the slope at 7am and settled down to wait. I think it was around 7:30am that the mongooses appeared and spent a good 5-10 mins gradually traversing the slope. Shadowy little devils!

To be exact: as you’re standing looking at the camp gate, take a path immediately on your right. If you follow it for a minute, you’ll actually be crossing the boulder slope where we saw the mongooses. But if you just go a few yards along the trail and then branch onto a smaller trail on the right right, it’ll take you to a good spot to overlook the slope instead.