One of the challenges for Season 5, Week 10 in Fortnite is to ‘Search between a covered bridge, waterfall, and the 9th green’. The 9th green is a reference to the 9th hole, located in Lazy Links, which has a covered bridge located near it and of course the waterfall is located at the edge of the map. You can see the position of the Battle Star on the map below:Simply interact with the Star to complete the challenge and you will be awarded with 10 Battle Stars. Remember to finish the game in order for the challenge to be registered.
If you are struggling to find the Star, it is located on a small dirt patch. Here is a video to show the exact location: