024 Geothermal Caverns base camp: A Survival Cache is buried next to the wall by the fire.
025
026 E of Geothermal Caverns base camp: After you break through the gate by lighting the gas, a Document is near the painting depicting exorcisms (Lara will comment to that effect when you are near). On the ground floor of that same room, you find a second Document.
027 Geothermal Caverns base camp: jump into the pool and swim through the underwater passage to find a room with a Survival Cache and Archivist Map .
028
029 S of Geothermal Caverns base camp: On the way out of the cavern, surface from the water and dig up the Survival Cache buried by a grown-together stalactite and stalagmite. A Relic is in the same room, on the opposite wall.
030 Geothermal Caverns entrance: After breaking through the entrance to the Tomb, pick up the nearby Relic.