That could be, but it could also be biased. For example, people looking for the camping site for a vacation might see those pictures and then click on then, not

That could be, but it could also be biased. For example, people looking for the camping site for a vacation might see those pictures and then click on then, not because they were looking for those pictures, but because OMG what is that in those pictures?! As a result, though, it would appear that people are searching for the pictures in the first place. I'm sure it's much more complicated than that. But we can't tell if the pictures are shown for good reason or not.