Appears to me you have covered almost every square meter of that area.
Getting close to that, but not there yet: on this outing, I discovered a feature I hadn't seen before, and I'm going to use it as a control site!
Have I told you about the 1m interval lidar contours Bob Cooley gives me? Really helps pinpoint land shapes.
I would like to see that sometime.
Happy to show you after the event.