007 SE of Greek Fire Depot: Search a few feet away from camp for a Survival Cache. It’s on a slightly higher ledge.
008 N of Greek Fire Depot: An upper balcony has a Document that isn’t far from a Monolith. Both look out over the northern urn dispenser.
009 Far NW of Greek Fire Depot: A Survival Cache is near the upper corner of the rooms. Break open a barrier there and loot the cache. It’s in a small recess.
010 Far N of Greek Fire Depot: Climb a rockface in the northern tip of the map and get onto an upper ledge. Loot a Relic from one end of a trapped passage, and use the other to get to the southern balconies.
011
012 SW of Greek Fire Depot: Look for a Document near the corner of the large, open section of the map. It’s on the upper tier of the huge room, and it’s sitting on a wooden crate by the balcony. SE from that spot, you find a Survival Cache near the southern wall. It’s underneath the dispenser docks.
013 SW of Greek Fire Depot: A Relic is in a small, trapped hallway. Go south from Greek Fire Depot, climb to the upper tier of the area, and look for this hallway while you search. Once you find it, the Relic is easy to get.
014 A Mural is in the exit tunnels for this area, but it’s fairly hard to get. After you’ve completed your time here and gone back to Ridgeline Base Camp (in Geothermal Valley), come back into the archives. You need Climbing Arrows to pull this off. Backtrack all the way through the flooded caverns in the south, and then go as far as you can through the passages to try and return to the western part of the level. It looks like it dead ends eventually, but there is a tiny crevasse that you can crawl through. Duck through the next tunnel afterward and you’ll be at a Mural in no time.
015
016 Far S of Greek Fire Depot: You get a Mural and a Strongbox in the first stretch of straight corridors after you finish the long swimming section. They are very close to the map’s southwestern exit.
017 Far S of Greek Fire Depot: The passages take you by a Coin Cache. It’s along the western side of the tunnel as you transition from the rough natural tunnels into smooth, carved ones. Look for a small island in the middle of the swimming section. Climb onto that and search it for Coins!