Near the marker there's an entrance to a cave, it may be hidden by a bit of foliage.
Hm I still can't find it for the life of me. The path that I'm on is a hill and two campfires going along the side of it and on other side where marker is there's just cliff and i've been running along that with no success.
Hmm, think if you're on the hill with campfires, you've gone too far. It's up a slight slope and I think there's a dead body opposite the entrance to the cave. Could be that you're actually directly above the cave where you are.