After picking up bronze reward #7, continue through the cave to an opening above a freezing pool with chunks of ice floating in it. Again, don't let Lara fall into the water if you can possibly help it. Even brief exposure is harmful. Hop onto the first floating island of ice. Jump from there to the second.
Over the headset, Zip warns Lara that she won't make it across the next gap.
Press Interact to shoot the slab of ice hanging from the ceiling so it drops into the water.
Now you can jump onto it and from there to the next chunk of ice.
Finally, jump to grab the man-made opening ahead on the left and pull up onto the ledge.
[Part 2 | Return to the Nepal Walkthrough]