I'm working on a custom worldspace, just to learn how that works and for fun so far. I made a small island and along the coastline there is a prevalent river or ocean noise (hard to pick out) that cut's out and repeats creating a annoying noise. Anyone know whats up with that? Could it be tided to regions maybe? (of which i know near nothing about)

Edit: I have added no sounds and there are no soundmarkers.