What is the name of the video that went viral that shows an underwater camera with a LARGE unknown animal?

It went viral a few years back and it was a camera underwater that had meat in a box or something, and then on the right you see this humongous...thing appear, but you only see like the side of it and it just sits there for a bit and then leaves, but it's too big to even fit on the camera. I believe it was a japanese video but I can't remember. Can someone please help me out? Thanks