I greatly enjoyed the zipline experience. However, the "instructors" were completely obnoxious and not at all funny. The bus ride up to the take off point was filled with fake facts, followed by a fake correction of the fact, followed by the real semi-interesting fact, all in an attempt of humor. As well as pre-adolescent gay innuendo between the instructors and lame pop-culture references (some dating back to 2005, with Brokeback Mountain). It was impossible to take these kids seriously. Our tour included a family whose first language was not English, a mother and her teenage son, my queer self, and my friend. I think we all felt pressure to sympathy laugh. And we definitely felt pressure to tip, something that was mentioned over and over again.
I'd tell these bros to leave their bro-ing at home, and be more professional and likable in the future.