Thames Wharf - Industrial Area with Three Large Water Tanks (part 1)

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Use the switch to fill tanks #1 and #2.

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Follow the long corridor...

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...past the entrance to tank #1.

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Continue to the end of the corridor and follow the side passage to tank #2.

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Jump in, swim down to the bottom, and retrieve a small medi pack and Uzi clips. Then pull the underwater lever (mounted on the wall below the blue lights) to open a trapdoor at the bottom of tank #1.

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Climb out of the water into the doorway opposite the lever. (i.e., the same one where you came in; the other doorway leads to tank #3, and you're not ready to go there yet).

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Follow the short passageway back to the main corridor, turn left, and return to the switch/button room at the far end.

[Part 2 | Return to the Thames Wharf Walkthrough]