https://www.gamespot.com/articles/fortnite-challenge-guide-flaming-hoops-locations-s/1100-6460897/

Season 5, Week 4 of Fortnite is in full swing, which means there's a bunch of new challenges to undertake. Among the newest set of challenges available to all players is one that asks you to "jump through flaming hoops with a Shopping Cart or ATK." The easy part of this challenge is getting your hands on a Shopping Cart or an ATK, but from that point on you'll have to put in some legwork to find the flaming hoops and hurl yourself through them. But never fear, we've got a guide here.

Statistically, finding five flaming hoops is actually a little easier than you might expect, since there's more than five on the island. The easiest way to locate them is to watch our video above and follow along. We've also got a map below pointing where the flaming hoops are, as well as details on where the ones we jumped through can be found.