Yes and it's a lot of fun. Granted, my zipline experience were a couple small ones at Myrtle Beach. One was over land about the size of a football field. And the other was over water.
It's a nice thrill if you are into that kind of thing.
Aside from only going on ziplines in video games, I have never been on a zipline in person at all. I am someone who does love an adrenaline rush though and that was found out by how much I enjoyed the white knuckle rides at a theme park I used to go to a lot when I was younger so if given the chance, I would more than likely jump on the chance to go on a zipline just to experience it.
No, well yes but nothing major, so no. But there is one I want to do which goes from Portugal to Spain across the Guadiana river but I'm currently too fat. It has a 17 stone weight limit.
One in Puerto Rico, one in Honduras. It's fun, but a bit dangerous. I ziplined one tall zipline, and this one requires that you look for a particular tape on a rope, I didn't see it, but its dangerous - so... yeah.