The whole area is built-up in a largely random manner which makes map reading very ambiguous. So, the whole business of visual cues stands and falls completely according to the pilot's local knowledge.
If you know your way around then it's all "obvious", of course.
I would not even dream of flying around there without radio navigation for primary guidance, on a carefully pre-planned route. For a random bimble, a moving map GPS is the only way. It's not just controlled airspace; there are various ATZs there. Plus one has to be conscious of the glide clear rule, being as one must below 2500ft.
Still on the subject of busts, how many serious level busts were done last year by CAT (that's two "professional" pilots in the cockpit) ?