https://www.gamespot.com/articles/fortnite-guide-hungry-gnomes-where-to-search-betwe/1100-6459945/

Fortnite Season 4 is nearly over, but in the meantime, Week 8 challenges are now available for players to tackle--so long as you own the Season 4 Battle Pass. Like any week, this consists of seven new objectives for Battle Royale players to complete on PC, PS4, Xbox One, mobile, and (as of E3) Nintendo Switch, including searching Hungry Gnomes and looking for a spot between a bear, crater, and refrigerator shipment. Here's where to find these key challenges and how to complete them all. [Update: All Season 4 challenges are now available, and you have until Season 5 kicks off on July 12 to complete them.]