盘点巴西20处最美风光（组图）

13. GrutadoLago Azul 蓝湖洞

The "Blue Lake Grotto" is part of one of the world's largest flooded cavities. Its blue waters extend more than 200 feet deep. The mysterious source of the lake is believed to be an underground river that has yet to be located. The grotto is rich with prehistoric treasures. A Franco-Brazilian expedition in 1992 uncovered thousands of prehistoric animal bones, including saber-tooth tigers and giant sloths.
“蓝湖洞”是世界上最大洪水洞的一部分。它蓝色的湖水延伸到200多英尺深。据说，湖水的神秘源头是还未确定明确方位的地下河。石窟中藏有丰富的史前宝藏。1992年，一支法国和巴西的联合探险队在这发现了成千上万副包括剑齿虎和大树獭在内的动物骨骼。