I was able to hear creepy wind sounds. I also saw the trees moving in the breeze. I went around this beach area, not sure if you hear it more there or not. But was really atmospheric the way I went.
Subtle background music could add to the suspense!!
What would make the getting caught really scary is if they have the one growl, but then you hear like a hoard roar for that extra 'Ohhhh nooo' xD haha!