((Map attached. Dark spot is the bunker. Also marked where Sri and Devlin are currently hanging out for reference...the lighter marking down the center is the 'path' and everything else labelled are the larger rocks.))
Heading carefully along the rocks and to the left, you find that the canyon path has ended, but that the canyon itself moves on for another thirty odd meters before cutting north again. Looking back the other direction, you can't see an end to the canyon wall there.
But you also spot something else. Near the upper corner of the turn in the rocks and only partially visible to you because of the rock outcroppings around it, you can see something that is definitely metal extending outwards. Whether its a turret, a security camera, or something else, you can't tell from this distance.