Where are all the keys to the locked doors in the new Iron King DLC?

[Gravityfail]

yeah...

[Windzor]

The Tower Key is located sort of a third of the way into the DLC, and unlocks all of the doors, it is located on an exterior perch, on a corpse right on the edge of the farthest point, this area is guarded by several submerged Giants, who can (with difficulty) be pulled individually, or run past.

[Promilia]

I don't remember the exact path towards it but I guess you're looking for this key: http://darksouls2.wikidot.com/tower-key

[Evertrill]

There is one key (I believe) the Tower Key. From the Foyer bonfire take the lift down and there should be a locked door in front of you, take a left and there should be a big passage way, there is a room filled with explosive barrels and explosive hollows and a door way that leads out to a ledge, the key is out on the body on the ledge furthest from the door way.

[Gravityfail]

Ah ok! I have already been to that area. Must have missed it. Thanks.