Though the lake's pleasure boating industry is limited to just 139 boats, these are nonetheless damaging the environment with their motors, loud PA systems, and excessive numbers of passengers.
再以日月潭周邊的遊艇業來說，雖然已實施總量管制（139 艘），不會再增加，但遊湖時艇上馬達及麥克風音量太大、人數超載等，一樣對環境不利。