Or for something even more entertaining you can listen to the audio guide in this posh British accent. Hmm, it took us all of 30sec to get sick of that thing and even though I tried to give it second chances it kept on giving itself a hard time. I mean, try this for size, "Even the yellow and gree markings on the rocks are special. They are not stains (because that is what I would think that they were!), they are slow growing plants called lichens (but you have to pronounce it with the actual "ch" sound to get the full effect)." I kind of lost it at the point and couldn't listen any more because I was laughing too much!