Photo taken on Jan. 26, 2011 shows part of the "Aqua City" in the Ocean Park in Hong Kong, south China, Jan. 26, 2011. Chief executive of the Hong Kong Special Administrative Region Donald Tsang attended the unveiling ceremony on Wednesday. [Xinhua/Song Zhenping]

Photo taken on Jan. 26, 2011 shows the aquatic creatures in the "Aqua City" in the Ocean Park in Hong Kong, south China, Jan. 26, 2011. Chief executive of the Hong Kong Special Administrative Region Donald Tsang attended the unveiling ceremony on Wednesday. [Xinhua/Song Zhenping]