Every year in October there is the Bison round-up and this is where those bison wind up when they are herded from all over the island. The pens are usually empty but since the round-up was just a couple days ago, 27 Oct 2018, there are still a few bison in the pens. If there are no bison, then the only thing you will have to look for is this bison tube with a log only.