Dvina Bay
At the eastern side , the shore steeply rises to a plateau ( White Sea - Kuloy Plateau ) which drains east into the Soyana , a major tributary of the Kuloy . The Onega Peninsula shore is often referred to as "Letny Bereg" ( Summer Coast ) , and the eastern shore of the bay is "Zimny Bereg" ( Winter Coast ) . 
<triplet> Soyana <subj> Kuloy <obj> mouth of the watercourse <triplet> Kuloy <subj> Soyana <obj> tributary