Earlier this week, SeaWorld California announced a major change to how they are going to be doing their orca presentations, with more of a focus on education and conservation that showmanship. With that change already in the works, they apparently figured they might as well give the tanks a good cleaning. The ace reporters from The Onion got a glimpse at how it's done.
For more humor, check out the comments on the original post. I knew it wouldn't take too long for someone to make a Finding Nemo joke.