We heard a lot of good things about this zip line so we decided we needed to do it! If buy tickets online and drive there yourself its $85 dollars a person and if you book it in San Juan and go on a tour it's about $125 per person. There are 9 zip lines total and the last one is called The Beast where you're laying down! The last one was a favorite. I think it's worth the $84 it's a full day adventure so plan on staying there breakfast to dinner.