Here’s the location of the highest mountain in Fortnite for the “Summit the highest mountain wearing the Journey Outfit” Alter Ego challenge.
The Alter Ego challenges are seperate from the weekly missions Epic Games release for Fortnite Battle Royale. The Alter Ego challenges allow players to unlock the different styles for the Chapter 2 Battle Pass skins that were seen in the launch trailer.
Each challenge has three different stages. The first stage for each challenge requires players to reach a certain leve. Stage 2 requires players to fully complete a certain amount of challenges. The third ansd final stage challenge requires players to perform an action in-game. Once completed, players will unlock a new style.