I was just watching a video of a guy from Weird NJ dropping a lead line and the best he came up with was 9’. Lakehurst Lake (Lake Huricon sp?) has springs bubbling up thru the sand which are cold and could explain the currents that have been reported and why it’s clearer than the nearby river.
Diving this thing without silting it up before we are done could be a problem, a tarp in the entry point would help, diving from a platform would be better but getting a boat in there would be a problem. I have a small one but it still weighs 200 pounds empty.