The co-ordinates for the anchor are 20,33, then you just swim over the edge and down from it, you'll see a boat down deep.
The exact co-ordinates for the bubbly fissure (and the other half of the pendant that is right next to it) is 17,33 (I am on top of it now).
The exact co-ordinates for the bubbly fissure (and the other half of the pendant that is right next to it) is 17,33 (I am on top of it now).