Dugongs live in the bay around our islands, quietly grazing on seagrass and generally minding their own business, but because they’re slow swimmers, fast-moving propeller-driven boats can chop them around. Happily, our latest waterbuses are now jet-driven specifically so that such prop-strikes are eliminated and these guys (and turtles too) are just a little safer than they used to be. (And no, I’m not wet enough to pretend that’s my picture.) More about dugongs
here.