Tomb Raider I-III Remastered Starring Lara Croft

You'll eventually come to a room in the living quarters after pulling the switch next to the big fish, a scuba diver is also here so take him out if you can then pull the switch that lowers the hatch to the room you're about to enter. When you enter the room kill the thug on the upper ledge then jump on to the middle platform, DO Not pull the lever to your right that's slightly hidden under the ledge instead jump up to the upper ledge to the right of the lever and you'll see the opening you need to jump to, as soon as you do the achievement will unlock.

Video makes it a bit easier: https://1drv.ms/v/s!AkAoDvuuo4IBhbZcGVsADRHB-0zH1g