Find a Way Into the Acropolis
Walk east into this new map and talk to Jacob again on the radio. You reach an old bridge, and the way forward has been destroyed. Hop down into the shallow water below the bridge and search for a Document (Prophet’s Arrival) in a recessed area.
Climb back onto the bridge and get to a ledge to the north. A linear path takes you toward your objective. Everything is quiet here at the moment, and the route is very scenic. Enjoy the sights!
Climb up and around on the rockface ahead, and then use your Rope to form a line between the lower platform and a higher one. Climb the rope and swim through a channel as you proceed toward the open area ahead. Lara gets into the open and spots Trinity gunships flying toward a tower in the distance.
Come down the hill and look for a new Base Camp (Remnant Bazaar). Use that, and search beside the tents nearby for a Strongbox; it’s just a touch to the northeast. This is a great area for harvesting Hardwood, so replenish your Arrows while you can. There are even a few quivers lying around to make the process essentially free.
Along the northwest wall of this valley is a Document (The Abandoned City). Walk south after getting this, and search more tents for a Strongbox and another Document (Common Blood). A Survival Cache is close to the western wall. A Relic (Reliquary) is inside a tent just before you reach the next objective. Try to get all of these before advancing. Go through a small pass into the southern end of the map.