A long time ago, I saw a photo of a wave pool in Japan that I thought for-sure had to be photoshopped. It was packed completely full. However, a new photo (the same?) has resurfaced, but this time with video. And while video can be faked, it requires much more sophistication. So - it's real? Anyways, here's the photo and a YouTube video after the link.
How would you guard this? Do you think people died?