During Fortnite Chapter 2 Season 4, all battle pass owners can access Wolverine's Weekly Challenges to unlock the Marvel superhero skin. For the first challenge on the list you'll have to investigate three adamantium claw marks. The blades cut metal, wood and stone as if they were butter!
Map
On the green camper van
The first claw mark is on the right side of the greenish camper van, where the vehicles are parked.
On a rock, near the pond
The second claw mark is on one of the large stones on the edge of the waterhole, in the middle of Weeping Woods.
Against the big building, in the North
The very last claw mark — probably the hardest to find — is on the west wall of the largest house north of Weeping Woods. It's located under the first wooden balcony on the first floor.
Note that you don't need to interact in any way with the claw marks. Getting close enough to each of them will be enough to complete the challenge.
Original content by Romain "Zorg" Becquelin.