I'm messing around near Atheon, during the gatekeeper checkpoint and I find this metal wall you can see through. On the wall I found a door like opening but it's blocked by a stone wall. Funny how many other places get blocked by stone walls in the VoG. It makes me trivialize this spot even more because the first chest is after the gate. The second chest is after a gate. The third chest is after a gate. You need to open the gate to get to the gatekeepers.