Where is Stack Shack?
Stack Shack is not a named place on the map, which can make it difficult for you if you do not know the exact location of all the notable places in season 3 of Fortnite. If this is your case, know that you will have to go to the small island furthest west of Holly Hedges and the house in H, located north of the said place (as indicated on the map above ).
Once there, you won't have to search chests to get a weapon, but fish it well. Do not panic, several fishing spots are in the area, as are the fishing rods. When you're equipped, head to one of the circles in the water (fishing area) and pick up a weapon. If luck does not smile on you, you will have to do it several times.
Once you fish your weapon, you'll complete the challenge and walk away with the 35 XP as a reward.