爱沙尼亚、瑞典和芬兰之间分布着许多岛屿。秋季，到处都能听到驼鹿的求偶叫声。在整个波罗的海区域，里加湾是灰海豹种群最集中的地方。A world of thousands of islands between Estonia, Gotland in Sweden and Finland. Baltic Sea can be found in the bay of Riga...
