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NO.3 Isle Royale National Park, Michigan
罗亚岛国家公园，密歇根
Isle Royale National Park is tricky to get to -- you can only access it by boat or seaplane -- but it's totally worth it. The park consists of Isle Royale and over 450 smaller islands, all surrounded by Lake Superior. The remote, untouched islands' unique biosphere was designated an International Biosphere Reserve in 1980.
罗亚岛国家公园可能不是那么方便到达--你只能通过船只或水上飞机到达--但这绝对值得一试。公园由罗亚岛和超过450个小型岛屿组成，被苏必略湖包围。这个未受影响岛屿群生物圈于1980年被定为国际生物圈保护区。
