For example, in order to dock several rafts together in a "harbor," people carved away large sections of the coral reef without a second thought. They also over-harvested coral and tropical fish to the detriment of the environment. As a result, tourists going out on glass-bottomed boats are now often treated to views of murky, fishless seas.
譬如「開港」就是生態的最大殺手，往往為了停靠幾艘竹筏，輕易毀棄了一整片珊瑚礁海岸；過度採擷海底珊瑚、捕捉熱帶魚，也使得熱門觀光項目「海底玻璃船」常常面臨水底混濁、無魚可賞的窘境。