Some people call it the staircase to the moon, either way it is a natural phenomenon, that can be seen at a place called Broome in Western Australia. The best viewing spot for this is at Roebuck Bay. This beautiful illusion is only created when the tide is fully out, which exposes mudflats, and the moon is full.
This phenomenon happens between March and October every year. There are a lot of tourists as well as locals that go, so expect crowds, if you are thinking of going, also some nights they have markets on or entertainment, so it can be a great night out for the whole family.
You can find the dates for this event for 2012 on the Broome Community web site. (also photo source)
It was hard to find real pictures of this event, a lot of people posting pictures that was just the moon shinning on the water, not the actually stairway to the moon, but I did find a very nice photo of the event on flickr if you would like a have a look
I found 2 videos that was fairly good, both had Embedding disabled, I feel this one got the best shot of the event. Staiway to the moon.
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