The bay gets narrow to the west. While the northern coast is lower and has two big peninsulas, at Nesebar and Pomorie, the southern part of the bay is rougher, with many little inlets and headlands.
To the west, the bay becomes narrower. The northern shore is lower and includes two large peninsulas, Nesebar and Pomorie; the southern region of the bay has a more rugged terrain with many small bays and rocky points.