After activating the mechanism that opens the waterfalls, turn around, having the entrance of the Temple to your back. Jump to grab the rope and turn right.

(Note: If you fail in the next process, you will have to climb up the rocks again and jump to grab the rope.)

With the Temple to your right, swing on the rope and jump to land on an invisible ledge. Move a bit to the left and jump to the flat ledge next to the rock (as shown in the screenshot).

Jump on the low rock.

Turn around to face the Temple and move to the right. You will see Lara standing on an invisible ledge above the rock. You now have to jump and land on the opposite side. To do that, aim for the right hand part.

Go to the other side.

Jump to the platform below, aiming for the left hand part. Turn right and go to the far left.

Jump down to what seems to be a river and go behind the pillar.

Once behind the pillar, climb on the ledge above.

You will find yourself in front of the ladder. Climb up it and jump to the platform behind.