In week 10 of Fortnite Season 5 you’ll have to find a treasure in “Fortnite Battle Royale” again (Search between a covered bridge, waterfall and the 9th green).
As with other weekly treasure challenges of this kind, you can go straight to the treasure, the exact location you see in the video below.
At the point in the video you can find the golden star symbol. Then finish the game or get killed to properly save the challenge. If you just leave the game without dying, it may not refresh the challenge. You can see everything under the Battle Pass challenges in the lobby. You need a Battle Pass for 1000 V-Bucks to unlock weekly challenges!
An overview of all challenges of week 10 of Season 5 can be found here.
Search between a covered bridge and the 9th green - Week 10
The treasure can be found in the north of the map. Northeast of Lazy Links! Beware of the strange players who camp at the site for kills to farms!