Some anglers, careless in starting a fire burned the island's woods to cinders, and the specimens of a rare plant that used to grow there, the haimei or "seaplum," were all dug up and have disappeared.
離島上珍貴的林投樹林，也因為釣魚人生火不慎，被燒得一團枯黃；而據說要幾百年時間才能生長、發育成株的特稀有植物「海梅」，也已被挖掘一空。從已有的破壞來看，三仙台的開發的確需要審慎進行。