A queer thing about those waters: there are no
Birds there, or hardly any.
I did not miss them, I do not remember
Missing them, or thinking it uncanny.
The beach so-called was a blinding splinter of limestone,
A quarry outraged by hulls.
We took pleasure in that: the emptiness, the hardness
Of the light, the silence, and the water's stillness.
But this was the setting for one of our murderous scenes.
I found this line to be extremely confusing. A quarry is a giant hole in the Earth from which stone is extracted. A hull is the body of a boat. How can they relate? My only guess is that Davie is describing the unique beach as a hole in the scene, similar to that of a hull in the Earth. And the hull fit the scenery because it was floating on the lake. 
 How would the quarry and hulls help lead the narrator to revealing her perspective on the setting? 

Across the Bay