Fortnite is keeping the Lantern Fest Event rolling with some new quests, including one that asks you to complete three parkour challenges on Lantern Fest Tour Island. These will test your platforming capabilities and reflexes quite a bit, but we'll tell you where to find them, including the Slippery Slide, and give you a general idea of what you're up against fo your 40,000 XP.
All parkour challenge locations and how to beat them
You can find the Parkour Paradise tent housing the three parkour challenges on the west side of the island just past the Slurp Juice shop. It should be noted, however, that completing the Slippery Slide course at the very back end (north) of the island will also reward you with progress toward your three parkour challenges.
Jungle Trip
You'll first have to jump over some logs here, which the game seems almost determined to make impossible due to the fact that Fortnite isn't exactly designed for platforming. If you can manage to jump just right and hold the button to mantle, you may be able to sort of make your way through it with janky mantling, but good luck.