Flooded Archives - Returning for the Third Mural (Part 1)

Head east from the Ridgeline Base Camp in the Geothermal Valley. Cross the stream and follow the path...

...all the way back to the tunnel opening where you exited the Flooded Archives when you first completed that level.

Drop down into the tunnel and follow it up a flight of stairs and past mural #2 and the strongbox.

When you come to what looks like a dead end, drop into the water...

...and swim down to the right. (The path from here on twists and turns but if you just keep going, you can't really get lost.)

Proceed through a flooded passageway lined with stalactites and stalagmites until you can surface.

Continue through a jagged opening the rocks...

...across the next flooded cavern, where you found coin cache #1 earlier, and down into an underwater opening on the far left.

Continue through a flooded cave...

...until you once again come to the surface. Climb out of the water and follow the tunnel to a doorway in the rocks.

On the other side of this doorway is the entrance to the tunnel that eventually leads to the mural.