With all sorts of respect, in this matter, especially in Lower Sabie and Olifants camp, is KNP the first to make a move, and I don't mean shooting the animals.
We have spend a lot of time in the tented camp of Lower Sabie, where the problems are the worst.
First of all: people can't put their food anywhere safe for the monkeys, except in their car.
The cupboards are so easy to open, and you can't lock them at all.
We allways bring rope with us, and every time we leave the tent, we tie the whole thing up, but most visitors don't know this.
Than you have the fridge.
You can't turn it decently to the wall, because it is built in.
Putting your table and chairs in front of it, slow them down for just a few minutes.
Putting your stuff in the tent is the worst option of all.
Since the last year the tents have doors, and they are so easy to open.
And you don't want to know how your tent looks after the monkeys visit.
Dustbins are even more easy to open for the animals and in Olifants there are a lot of them who even don't have covers.
Solutions: put a good case with a lock on every deck of the tents, so people can safely keep their food (very nice because there is a lot of rats overthere as well),
make good locks on the freezers, we have seen them in other camps, give keys with the tents, just like when you are in a bungalow, and last but not least, put baboon proof dustbins out there.
If the animals don't find food, they will stay out, they are NOT stupid, losing their time in search of food in places where there is no food.
And most of all: give people who feed the animals a very high fine, because they are the ones who causes most the trouble anyway.
It might also be a good idea to keep the trees away from the fences of the camps.
Not just for the monkeys, but more specific for leopards.
In some camps you can see that the trees are kept away carefully from the fences, but in other camps we are amazed that little attention is given to it.
If these things are being done and the public is informed more strongly (somthing like: if you feed them, or not being attentive with keeping away your food, in fact you are killing baboons and vervets), and for a while energy is given by staff to chase out the animals constantly, the problem will be solved on a permanent base, I am sure about that.
Without any killing. Which would be something to be proud off.