drrich2
Contributor
What's a "zip line"?
You get in a harness that connects to a sloping overhead metal wire strung out between tall, vertical objects (e.g.: towers, trees, etc...) and you 'zip' across from the higher to the lower. A popular excursion at cruise ship ports, and can be found as an attraction at some other land sites. Here's an upstate New York page with a photo showing a couple of zip liners.
What's "A.I."???
Another poster mentioned 'all inclusive,' and that's right. What 'all' means varies. To a non-drinker like me, it means at least the meals, and often some snacks, are covered in the package price. Sometimes A.I. packages include some alcoholic beverages, and sometimes they don't. If that's something you want, be mindful the selection could be quite limited.