Tombraider- anniversary - peru waterfall

[karthikzone4u]

can someone help me out to clear this stage. i struck in peru stage, i m not able to stop the water fall, i found 2 cog, but i need 3 cog to stop the waterfall, wher to find the 3 key for that mechanism, can any body help me out this???

[QiX]

You need to go into the cave where you fight the big bear and follow all the way down till you reach a valley. There you will meet more big mobs to fight (I won't tell what are them, but expect some huge surprises ). Just after you're done there you will find a way to come back to the waterfall area.

[rg_001100]

To get to this cave, you will need to find a ladder, and go from there. (It involves placing the cogs in the right places, btw).

Once you have the 2nd cog, you don't need to go in the direction of the waterfall area, only through the cave as suggested.