I agree. No evidence of any recent "gully" this trip and when we went two years ago the passage had just been dug and was a couple-few feet in depth..but...it was very easy to walk on the shore to get by it. It seems to fill with sand rather quickly and is more of a flush than a event occurring over multiple days....

I should add that it makes no sense to me that it even happens...sacrificing the water quality of a great beach so a contaminated pond can empty...but, that's another issue