Ziplines are a lot of fun in Fortnite, and quite useful. They allow you to traverse the map quickly, much faster than you could by walking or running, and are often set up to allow you to easily climb something that would otherwise be impassable.
You may also need to track them down for certain in-game challenges, so it's worth knowing where to find them.
You can find them in very specific areas of the map, normally near the large mountain range in the south of the island.
On the map below, we've marked the general areas where you can find ziplines.
As you can see, there is a huge collection of them in the south of the island, with a scattering on Hydro 16 and Weeping Woods.
There's a full set of ziplines from Retail Row to Steamy Stacks, and you can go back up if you're careful.
One important thing to know about ziplines is that you can take damage while you're on them, as you're completely open to the world around you, but you can also shoot enemies while you're hanging on. If you're facing a direction on a zipline, that's the direction you'll be heading, so you can also return to your home country if that turns out to be a dangerous way to travel through the area.
