About once each term, when I was in primary school, our teacher would organise a class outing to some place like the botanical gardens, some historical monument, or once simply to the slopes of Table Mountain (where we learned about geology).

We found this group of school kids seated on the grass at Mouille Point (map), opening their snack packs as two or three very strict-looking teachers ensured that they were (reasonably quiet) and well behaved. :)