This area is shown in a diagram included in the main walkthrough.

Back in the CONTROL ROOM, pick up the large medi pack and 2 bundles of harpoons.

Face the window between the 2 receptacles.

Dive into the pool and swim down through the funnel then forward.

The white metal tunnel where you entered this area should be directly ahead.

Rather than swimming into the tunnel, head straight upward between the wall and the yellow metal structure. Aim for the wall festooned with netting.

Continue swimming upward along the rock wall above the netting. Then roll to face the CONTROL ROOM.

Now swim up to the top of the yellow structure...

...to find some grenades. From here, if you turn a little to the left, you can see a small alcove made of rusty metal containing some flares and a CIRCUIT BULB (1/2). If you have enough air, swim over there now to make the pickups. Otherwise, swim back down underneath the yellow structure and up the funnel to get air inside the CONTROL ROOM. Then return for the flares and bulb.

There's also a rocket sitting on the metal bar suspended from the crane, which is below and to the left of the alcove with the CIRCUIT BULB. Take your time and get air between pickups if necessary.

[Return to the Sleeping with the Fishes Walkthrough]