Sleeping with the Fishes - Fourth Pool (part 1)

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Just inside the "Restricted Area" door, the current will carry Lara along to the top of the passageway.

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Notice the opening on the left leading into the underwater cave, but don't go that way yet. Instead surface in the yellow room at top of the wide passageway....

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...and climb out of the water into a corridor with bars at the far end.

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About halfway down the hall on the left is a room with a window and a locked door. Draw pistols and make some noise to get the attention of the gunman inside.

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Kill him when he opens the door.

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Go in and pick up a small medi pack and flares inside on the right...

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...plus a bunch of harpoons behind the big screen. Hop over the trapdoor in the middle of the floor to open it, but don't drop through yet.

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Press the button to open the bars at the end of the corridor. Exit the way you came in, turn left...

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...then left again, into a long, enclosed walkway overlooking the sea floor.

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At the end of the walkway, pick up a rocket and a small medi pack—and get a glimpse of another rocket and the goings-on inside the RESEARCH LAB.

NOTE: If you don't yet have the ROCKET LAUNCHER, you'll get it here.

[Part 2 | Return to the Sleeping with the Fishes Walkthrough]