We hate fake reviews. We want to provide the best possible information for other travellers which means that knowing you are a real person helps. We know having a Facebook Profile doesn't guarantee you are a phony, however we would hope that once you've written your review that you are going to want your friends to read it. So by using Facebook, we guarantee that you can inform your friends about what you really thought about this tour.

If you want to share it with your friends on Facebook, it kind of tells us (and other travellers) that you are telling the truth. Why would you lie to your friends?