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 | The photo taken on Jan, 7, 2006 shows a cave in the Shishan Volcanic Cluster National Geopark in Haikou, capital of south China's Hainan Province. click to open  |  | A pahoehoe lava in the Shishan Volcanic Cluster National Geopark in Haikou, capital of south China's Hainan Province, Jan, 7, 2006. click to open |  | The photo taken on Jan. 7, 2006 shows the Ma'anling crater, a main scenic spot in the Shishan Volcanic Cluster National Geopark in Haikou, capital of south China's Hainan Province. The geopark, together with the first Haikou volcanic culture and tourism festival, was opened here Saturday. click to open |
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