
After picking up the Jade Dragon at the bottom of the pool, as shown in the last section, fill Lara's lungs then swim into the hexagonal tunnel on the wall of the pool below the small, orange tanks.

As you follow the tunnel, first straight ahead then left, 2 scuba divers (19-20) appear. You don't have too many harpoons at this stage.

So swim past the divers into the next room.

Surface near the middle of the right wall and climb out of the water...

...in this narrow alcove.. Shoot the scuba divers from there.

Then kill the 2 men with clubs (21-22) patrolling the walkway across the pool.
SHORTCUT: It's possible to skip to the end of the level by using a tricky jump here. Details are in a footnote following the main walkthrough.

To continue in the usual way, turn around, climb onto the ledge at the back of the alcove, and pull the switch...

...to open the control room door back in the room with the POOL AND CIRCULAR SAW.

Hop back down to the lower ledge and shoot another scuba diver (23) who swims in through the underwater tunnel. If he doesn't approach immediately, try jumping in the pool to get his attention. Then climb out of the water again to shoot him.

If you like, you can swim down to examine the mini-submarine parked on the bottom. You can't do anything with it now, but you'll be seeing again soon.

Swim back through the hexagonal tunnel to the ROOM WITH THE POOL AND ORANGE TANKS.

Climb out of the water on the left.

The 2 enemies (24-25) you just released from the control room will enter through the doorway on the opposite side of the room, and you can shoot them across the pool as they approach. Usually it's a guy with a gun first...

...followed by one with a club.

Take their Uzi ammo and small medi pack (25-26). Then exit this room through the door where they came in.
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