One more thing I've noticed, I wish people would tie down their plastic bottles and other rubbish a lot better. The amount of plastic on the Omarama track and other places was embarrassing. A lot of people don't seem to understand the concept of "unspoiled", there are very few place left of the planet that are like that. Let's not ruin our little corner of the world.
Also, while I am complaining :-), when there are cyclists, pedestrians or animals on the road, I make an effort not to dust them in or scare them, because these are the reasons that will see us locked out of these places in the near future.