大蓝洞坐落于加勒比海，离伯利兹绝对较近，是灯塔礁的一局部。
Thee Caribbean Sea is where the Great Blue Hole is located. It is relatively close to Belize and is part of the Lighthouse Reef.
在科学选址的基础上，对海岸线（岛屿基准面，明礁和灯塔）的定义更加明确。
The definition of the coastal line (datums of island, uncoverd neaf and lighthouse) is more clarified on the basis of scientific location.
金星灯塔：钓鱼礁周围黑色的沙滩，蔚蓝的海水。
Pointe Venus Lighthouse. : Black sand beach and clear blue water by a fishing reef.
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