Temple of Karnak - Pool and Flooded Passageway (part 1)
Includes Secret #2

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After obtaining CANOPIC JAR 1, as shown in the previous section, drop down to the floor and jump into the pool.

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Swim down to the bottom and retrieve some flares.

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Return to the surface for air if necessary. Then swim down through the opening in the side wall.

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Swim forward and down through the passageway...

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...until you come to a square door at the bottom right.

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Position Lara facing the gray tile at the center of the door and press Action. She'll then open it.

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Swim through the door and follow the flooded passageway forward, then left.

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Swim forward then up to the square opening in the ceiling, where you can get air.

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Turn around while treading water and climb out onto the ledge to find SECRET #2 (27/70), Uzi clips and crossbow ammo, two separate pickups.

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