Geothermal Valley - Baths of Kitezh Challenge Tomb (Part 3)

Beyond the trap, on the right, is another relic (13/13), an Ivory Jar from the Icons of Kitezh set. Have a look at it and then continue up the stairs. (The stairs leading down are a dead end but will later become the exit.)

At the top of the stairs on the right is an alcove containing a document (31/33), The Aftermath from the Baths of Kitezh series (Greek).

Exit the alcove and continue through the archway ahead, cracking open a salvage crate on the way.

Squeeze through the gap between the dangling roots to enter the tomb proper.

Dive into the pool...

...swim forward into the alcove to the southwest, and climb onto the wooden boat. From here you can see the codex in the next room through the bars.

Turn around, stand near the rope spool at the front of the boat, and shoot a rope arrow into the beam on the far (northeast) side of the room.

Now use your axe to turn the crank and move the boat out into the middle of the pool. When you get about halfway across, the rope breaks, but that's OK, since this is where you want to be.

Shoot a rope arrow into the beam in the southeast alcove.

Then turn the crank to pull the boat into that alcove.

Jump from the boat into the raised opening on the right.