We've learnt not to mess with icebergs. They're big, hard and bring down ships with ease. They're also pretty majestic sometimes, and can move like a mammoth monster rising out of the sea when they flip over, as this incredible tourist-shot video shows.

Apparently icebergs flip quite often as they melt and change shape, but no one's normally on hand with a camera to capture the moment -- I've certainly never seen one do its thing.

You can really see what they mean when they say it's just the tip of the iceberg. [YouTube via Daily Mail]