Cape Town Daily Photo

Green Arrow – Blue Arrow

I came upon these two signs in the V&A Waterfront but really don't know what they mean. I'd have to assume that they're related to some route (like a green route or a blue route) that takes tourists past points of interest in the Waterfront area. I'd imagine that there would also be some kind of a map detailing what can be found along the route.

This could however all be utter nonsense and so it would be awesome if someone could shed some light on this matter - either confirming my suspicions or pointing out their true meaning.

Have you seen these arrows before? Do you know for sure what they mean? Can you help?