It has two large arms, the Gulf of Bothnia and the Gulf of Finland. 有波的尼亞灣和芬蘭灣兩個(gè)大海灣。
These areas are situated around the Finnish coast from Mid-part of Gulf of Finland up to the northern part of the Gulf of Bothnia. 這些區域位于芬蘭海岸沿線(xiàn)從芬蘭海灣中部至波的尼亞灣的北部。