https://www.gamespot.com/articles/fortnite-challenges-week-10-search-between-stone-c/1100-6458531/

A new Fortnite challenges update has arrived, unlocking Week 10 objectives for Battle Pass owners on PC, PS4, Xbox One, and mobile. This is the final week of Season 3, and it introduces a new element--floating rings to skydive through--along with a search for an object between a stone circle, wooden bridge, and red RV that may prove difficult for some.