Welcome here G-man!
Confirm about Ribbon Falls, that would be my choice. An the way there you will pass the Bilanjil campsite and you may be tempted to use because its a good spot for a tent. However in reality the shepherds hang around there too, and the livestock are frequently a little further upstream from there, so its only a little better than the area around the Falls. You could also find a quiet spot near the Elands River Falls.
Compare notes with
this article on security the Amphitheatre.
Please tell us more about what security issues you had up there previously. These incidents happen very frequently yet we have extremely little written about them.