Go up the stairs and climb on the ledge to the left.

Follow the ledge and jump to grab the horizontal pole. Swing and jump to the opposite side. Turn left and go to the end of the ledge.

If you take a look below, you will see a slope. Jump there and Lara will slide down and grab the edge automatically.

Release to grab the handhold below. Traverse to the left and jump to grab the horizontal pole above the river. Swing and jump to grab the next pole.

Swing and jump to grab the ledge ahead. Shimmy left, pull into the alcove and pick up the Treasure (9/30).

Jump to grab the handhold on the left wall and climb on the stone beam.

Turn left and jump to the opposite beam. Hang from the edge and traverse to the right...

... until Lara is able to put her legs on the wall. Jump up to grab the handhold, then the ledge above. Shimmy right and pull up to return back to the area where you killed the tigers.