Someone went to a lot of effort to dump stuff in Surf 'n SLide Water Park to make it more "natural." Were they jokesters or vandals?

To start with, whoever it was also stole watches and sunglasses, so they will experience the full consequences of the law when caught. But aside from that criminality, the prank was more skullduggery. Here's what they did:

Several buckets of dead carp and buckets of sand were dumped into the pool -- you know, to make it more like a real ocean, lake or river. Where did they get the carp? Who drives several buckets of sand to their city pool?

They obviously thought it was funny. Do you?

[SOURCE: Columbia Basin Herald]