To me there are no secret spots, undiscovered spots by me yes, but I am certain many a fisherman has visited them before me.
I tend to fish regularly fished spots a lot with good results by putting in the effort that is not the norm by the majority and therefore less learned by the fish i target.
I also fish areas suspected of not worthy of fishing f0or a variety of reasons and produce very good results.
Just because a location is not a known "hot spot" means very little to the fish that happily and safely inhabit these locations.
Go back 25 to 30 years ago, the Brisbane CBD reaches of the river were the hotspot for jew fishermen in the know and they recorded some amazingly large fish in waters that presumably would no longer hold those monsters. I believe there is still some of those monsters residing there as well as newcomers into the area. They probably feel fairly safe in their environment because of the lack of fishing pressure.
Fishing "inside the square" is very narrow minded and will soon deplete reasonable amounts of fish stocks in those areas. Broaden your horizons and look for new areas and you will not need other peoples hot spots.
If people ask me for a good fishing location I will happily give out some good advice as someday I will be a newbie to a new location and out of my usual habitat.
Jack.